Archives Center, National Museum of American History
Emile Bachelet Collection
Bachelet, Emile, 1863-1946
Bachelet, Albert E.
NMAH.AC.0302
Archival Resource Key
0.3 Cubic feet
3 boxes
1890 - 1973
The collection documents Emile Bachelet, inventor of electro-magnetic therapeutic devices for the treatment of rheumatism.
English
.
Emile Bachelet Collection: 1880s-1973.
Scope and Contents
The collection consists of approximately .66 cubic feet of biographical materials, correspondence, clippings, patents, photographs, newspaper clippings, and a scrapbook relating to Emile Bachelet's invention of a device for magnetically levitating trains and other devices.
Series 1: Biographical Materials, 1890-1956, consists of Bachelet's passports, citizenship papers, some genealogical notes, clippings, a certificate from the Masonic Grand Lodge of Massachusetts, and an undated interview with Albert Bachelet, Emile's son. Documentation on Albert Bachelet's work with the Lincoln stereoscopic pairs is also here.
Series 2: Correspondence, 1915-1959, includes letters from Emile Bachelet's former secretary, Suzanne Stokvis-Simpson, to Albert Bachelet from 1948 to 1959.
Series 3: Patents, 1903-1929, contains both United States and foreign issued patents for Bachelet's inventions. Also included in this series is information on Bachelet's Wave Generator Machine that was used to treat individuals suffering from rheumatism and other pains by "increasing the vital energies of the blood and creating a vibratory magnetic field in which is placed the patients or patients."
Series 4: Photographs, 1929-1945, include Bachelet's "Magnetically Levitated Railway" device, his "Free Energy Machine", models, equipment, and other devices being demonstrated and portraits of Emile Bachelet.
Series 5: Newspaper Clippings and Scrapbook, 1912-1973, document accounts of the public presentation of Bachelet's model of a magnetically levitated train in London in 1914 and other projects.
Series 6: Miscellaneous, 1915-1917, contains a visitor's book to Bachelet's laboratory, brochures on the Bachelet Wave Generator machine and drawings.
Arrangement
The collection is divided into six series.
Series 1: Biographical Materials, 1890-1956
Series 2: Correspondence, 1915-1959
Series 3: Patents, 1903-1929
Series 4: Photographs, circa 1880s-1945
Series 5: Newspaper Clippings and Scrapbook, 1912-1973
Series 6: Miscellaneous, 1915-1917
Biographical / Historical
Emile Bachelet (1863-1946) was born in Nanterre, France, a village outside Paris and emigrated to the U.S. in the 1880s. He began his career in Boston as an electrician on the building staff of the Boston Institute (now known as Massachusetts Institute of Technology). He was naturalized a United States citizen in 1888, moved to California in 1889 and then to Tacoma, Washington where he worked as an electrician for the city government and later as an inventor of electro-magnetic therapeutic devices for the treatment of rheumatism. Bachelet discovered that arthritic pain disappeared when he was near huge generators and thus began his experimentation with electromagnets. In the 1890s he conceived the idea of magnetic levitation and worked for twenty years on its application to a train. A model was exhibited in London in 1914 and it received worldwide notice and some financial support. In the early 1900s, Bachelet moved to New York City and formed three companies, Bachelet General Magnet Co., Inc., Bachelet Magnetic Wave Company, and Bachelet Medical Apparatus Company to continue his invention work. However, his interest shifted often from one device to another and he later moved to Poughkeepsie, NY where he continued his invention efforts in a small workshop until his death in 1946.
Immediate Source of Acquisition
The collection was donated by Albert E. Bachelet, son of the inventor.
Custodial History
The collection was transferred to the Archives Center from the Division of Electricity (now the Division of Medicine and Science) in April 1988.
Conditions Governing Access
Collection is open for research. Gloves must be worn when handling unprotected photographs and negatives.
Conditions Governing Use
Collection items available for reproduction, but the Archives Center makes no guarantees concerning copyright restrictions. Other intellectual property rights may apply. Archives Center cost-recovery and use fees may apply when requesting reproductions.
Preferred Citation
Emile Bachelet Collection, Archives Center, National Museum of American History
Processing Information
Processed by Robert S. Harding, archivist and Don Darroch, volunteer, May 1990; revised Alison Oswald, archivist, March 2003.
Processing Information
Processed by Grace M. Angle (volunteer) June, 1988; supervised by Robert Harding, archivist. Revised by David Haberstich, March 21, 2005.
Electromagnetism
Electromagnetism in medicine
Inventions -- 1910-1920
Inventors
Magnetic levitation vehicles -- 1910-1920
Magnetic suspension -- 1910-1920
Medicine
Patents
Photographs -- Black-and-white photoprints -- Silver gelatin -- 19th-20th century
Railroads -- Trains -- 1910-1920 -- England
Scrapbooks
Contracts
Clippings
Churchill, Winston, Sir, 1874-1965
Biographical Materials
Series 1
Archival Resource Key
1890 - 1956
Miscellaneous biographical materials
Archival Resource Key
1914 - 1946
1
1
Miscellaneous biographical materials
Tacoma Illustrated (page 80)
Archival Resource Key
1890
1
2
Albert Bachelet
Archival Resource Key
1956
1
3
Passports and citizenship papers
Archival Resource Key
1916 - 1918
3
1
Correspondence
Series 2
Archival Resource Key
1915 - 1959
Correspondence
Archival Resource Key
1915 - 1932
1
4
Correspondence
Archival Resource Key
1916 - 1945
1
5
Suzanne Stokvis-Simpson
Archival Resource Key
1948 - 1949
1
6
Suzanne Stokvis-Simpson
Archival Resource Key
1950 - 1953
1
7
Suzanne Stokvis-Simpson
Archival Resource Key
1954 - 1959
1
8
Patents
Series 3
Archival Resource Key
1903 - 1929
United States Patents
3.1
Archival Resource Key
1903 - 1929
US #743,372, Magnetic Medical Apparatus
Archival Resource Key
1903
1
9
US #743,373, Electromagnetic Therapeutic Apparatus
Archival Resource Key
1903
1
9
US #847,877, Electric Current Interrupting and Varying Apparatus
Archival Resource Key
1907
1
9
US #849,653, Electro Magnetic Apparatus
Archival Resource Key
1907
1
9
US #946,193, Electromagnet
Archival Resource Key
1910
1
9
US #986,039, Synchronizing Interrupter for Electric Currents
Archival Resource Key
1911
1
9
US #1,001,236 Electromagnetic Sound-Wave Therapeutic Machine
Archival Resource Key
1911
1
9
US #1,020,942, Levitating Transmitting Apparatus
Archival Resource Key
1912
1
9
US #1,020,943, Levitating Transmitting Apparatus
Archival Resource Key
1912
1
9
US #1,051,056, Levitating Apparatus for Conveying Ammunition
Archival Resource Key
1913
1
9
US #1,088,511, Levitating Apparatus for Starting and Stopping Aeroplanes and the Like
Archival Resource Key
1914
1
9
US #1,232,174, Electromagnetic Engine
Archival Resource Key
1917
1
9
US #1,738,981, Mechanical Movement
Archival Resource Key
1929
1
9
Foreign Patents
3.2
Archival Resource Key
1905 - 1915
British #10726, Improvements in and relating to Electro-Magnetic Levitating Devices
Archival Resource Key
1915
1
10
Bachelet Wave Generator Machine
Archival Resource Key
1907
1905
1
11
Photographs
Series 4
Archival Resource Key
1929 - 1945
Photographs
Archival Resource Key
undated
1
12
Photographs
Probably the earliest photograph of Bachelet's working model of his magnetically levitated railway in Mt. Vernon, New York (1910) [black and white photoprint]
Archival Resource Key
Levick, Edwin
1 Item
unmounted
Silver gelatin on paper.
5.2" x 8.0"
1910
English.
1
12
Probably the earliest photograph of Bachelet's working model of his magnetically levitated railway in Mt. Vernon, New York (1910) [black and white photoprint].
Local Numbers
AC0302-0000014.tif (AC Scan)
Conditions Governing Access
Unrestricted research use by appointment. Photographs must be handled with cotton gloves unless protected by sleeves.
Scope and Contents
"Edwin Levick / New York" blind-stamp at lower right.
Railways
Engineering models
Magnetic suspension -- 1910-1920
Photographs -- 1910-1920 -- Black-and-white photoprints -- Silver gelatin
Bachelet, Emile, 1863-1946
Winston Churchill at demonstration of the magnetically levitated railway at Bachelet Works [black and white photoprint,]
Archival Resource Key
Bachelet, Emile, 1863-1946
1 Item
Silver gelatin on paper.
6.6" x 8.7"
1914
English.
1
12
Winston Churchill at demonstration of the magnetically levitated railway at Bachelet Works [black and white photoprint,] 1914.
Local Numbers
AC0302-0000026.tif (AC Scan)
Conditions Governing Access
Unrestricted research use by appointment. Photographs must be handled with cotton gloves unless protected by sleeves.
Scope and Contents
Photographer unidentified, but possibly by Brown Bros. Churchill is shown in profile, slightly to the right of the center of the image.
Engineering models
Magnetic suspension -- 1910-1920
Photographs -- 1910-1920 -- Black-and-white photoprints -- Silver gelatin
Churchill, Winston, Sir, 1874-1965
Bachelet, Emile, 1863-1946
[Emile Bachelet : black-and-white photoprint.]
Archival Resource Key
Bachelet, Emile, 1863-1946
Bachelet, Albert E.
1 Item
Silver gelatin on paper.
6.2 x 4.8 in.
Circa 1908-1910
English.
1
12
[Emile Bachelet : black-and-white photoprint.]
Local Numbers
AC0302-0000001.tif (AC Scan)
Scope and Contents
Photographer unknown. Emile Bachelet in his laboratory standing next to his working model of the magnetically levatated railway.
Scientists
Inventors
Laboratories
Engineering
Railroads
Portraits -- Men
Photographs -- 1900-1910 -- Black-and-white photoprints
[Emile Bachelet] [Portrait]
Archival Resource Key
Bachelet, Emile, 1863-1946
1 Item
Silver gelatin on paper.
6.0 x 4.7 in.
Circa 1908-1910
English.
1
12
[Emile Bachelet] [Portrait]
Local Numbers
AC0302-0000002.tif (AC Scan)
Scope and Contents
Photographer unknown. Emile Bachelet in the Bachelet-Bracewell lab holding up the first experimental model of the levitated railroad.
Portrait
Scientists
Inventors
Laboratories
Engineering
Railroads
Portrait prints
Photographs
Bachelet, Emile, 1863-1946
[Magnetic Devices in Emile Bachelet's Laboratory] [Portrait]
Archival Resource Key
Bachelet, Emile, 1863-1946
1 Item
Silver gelatin on paper.
6.1 x 4.7 in.
Circa 1908
English.
1
12
[Magnetic Devices in Emile Bachelet's Laboratory] [Portrait]
Local Numbers
AC0302-0000003.tif (AC Scan)
Scope and Contents
Photographer unknown. A view of the table top in Emile Bachelet's laboratory which has several items on it including the electric magnetic interrupter and other magnetic levitational devices.
Scientists
Inventors
Laboratories
Engineering
Magnetic devices
Photographs
Bachelet, Emile, 1863-1946
[Street View of Emile Bachelet's Laboratory in London] [Photograph]
Archival Resource Key
Bachelet, Emile, 1863-1946
1 Item
Silver gelatin on paper.
3.5 x 2.6 in.
Circa 1971
English.
1
12
[Street View of Emile Bachelet's Laboratory in London] [Photograph]
Local Numbers
AC0302-0000004.tif (AC Scan)
Scope and Contents
Photographer unknown. Outside of Bachelet's Laboratory in Great Saffron Hill, London, 1913. Taken in 1971. A corner building on a narrow street with the name "Mansell litho" on it. Few cars and people surrounding.
Scientists
Inventors
Laboratories
Engineering
Magnetic devices
Photographs
Bachelet, Emile, 1863-1946
[Emile Bachelet] [Portrait]
Archival Resource Key
Bachelet, Emile, 1863-1946
1 Item
Silver gelatin on paper.
6.5 x 4.8 in.
Circa 1900-1915
English.
1
12
[Emile Bachelet] [Portrait]
Local Numbers
AC0302-0000005.tif (AC Scan)
Scope and Contents
Photographer unknown. Emile Bachelet posing for the camera in a suit.
Scientists
Inventors
Laboratories
Engineering
Magnetic devices
Photographs
Portraits
Bachelet, Emile, 1863-1946
[Emile Bachelet] [Portrait]
Archival Resource Key
AEB
1 Item
Silver gelatin on paper.
7.0 x 5.0 in.
Circa 1945
English.
1
12
[Emile Bachelet] [Portrait]
Local Numbers
AC0302-0000006.tif (AC Scan)
Scope and Contents
Portrait of Emile Bachelet at the end of his life. He is looking away from the camera and in a suit.
Scientists
Inventors
Laboratories
Engineering
Magnetic devices
Photographs
Portraits
Bachelet, Emile, 1863-1946
[Study Model for Free Energy] [Photograph]
Archival Resource Key
Merillat, Lou
1 Item
Silver gelatin on paper.
7.6 x 9.3in.
Circa 1922
English.
1
12
[Study Model for Free Energy] [Photograph]
Local Numbers
AC0302-0000007.tif (AC Scan)
Scope and Contents
A contraption invented by Emile Bachelet that demonstrates free energy.
Scientists
Inventors
Energy
Laboratories
Engineering
Magnetic devices
Photographs
Bachelet, Emile, 1863-1946
[Demonstration of Magnetically Levitated Railway] [Photograph]
Archival Resource Key
Bachelet, Emile, 1863-1946
1 Item
Silver gelatin on paper.
6.5 x 8.6 in.
Circa 1914
English.
1
12
[Demonstration of Magnetically Levitated Railway] [Photograph]
Local Numbers
AC0302-0000008.tif (AC Scan)
Scope and Contents
Emlie Bachelet (center with his arms elongated), demonstrates and explains to visitors how his magnetically levitated railway works. This takes place at his laboratory in Great Saffron Hall, Hobborn Circus, London.
Scientists
Inventors
Energy
Laboratories
Engineering
Railroads
Magnetic devices
London (England)
Photographs
Bachelet, Emile, 1863-1946
[Woman operating switchboard of model railway] [Photograph]
Archival Resource Key
Bachelet, Emile, 1863-1946
1 Item
Silver gelatin on paper.
6.5 x 4.7 in.
Circa 1915
English.
1
12
[Woman operating switchboard of model railway] [Photograph]
Local Numbers
AC0302-0000009.tif (AC Scan)
Scope and Contents
Mrs. Stokvis-Simpson (taken by Flashlight) Assistant and Secretary to Emile Bachelet; operating the switchboard of Model "Bachelet" Railway
Scientists
Inventors
Laboratories
Engineering
Railroads
Magnetic devices
Mount Vernon (Westchester County, N.Y.)
Photographs
Bachelet, Emile, 1863-1946
[Boy riding magnetic railway] [Photograph]
Archival Resource Key
Bachelet, Emile, 1863-1946
1 Item
Silver gelatin on paper.
6.6 x 8.6 in.
Circa 1900-1920
English.
1
12
[Boy riding magnetic railway] [Photograph]
Local Numbers
AC0302-0000010.tif (AC Scan)
Scope and Contents
Keith Alderton riding the magnetically levitated railway at Bachelet laboratory to demonstrate the power of the railway.
Scientists
Inventors
Laboratories
Engineering
Railroads
Magnetic devices
Photographs
Bachelet, Emile, 1863-1946
[Hyman Maxim testing magnetic railway] [Photograph]
Archival Resource Key
Bachelet, Emile, 1863-1946
1 Item
Silver gelatin on paper.
6.6 x 8.5 in.
Circa 1914
English.
1
12
[Hyman Maxim testing magnetic railway] [Photograph]
Local Numbers
AC0302-0000011.tif (AC Scan)
Scope and Contents
Sir Hyman Maxim testing the lifting power of the proposed passenger car of the Bachelet levitated railway.
Scientists
Inventors
Laboratories
Engineering
Railroads
Magnetic devices
Photographs
Bachelet, Emile, 1863-1946
[Bust of Emile Bachelet] [Photograph]
Archival Resource Key
Bachelet, Emile, 1863-1946
1 Item
Silver gelatin on paper.
10.0 x 8.1 in.
Circa 1913
English.
1
12
[Bust of Emile Bachelet] [Photograph]
Local Numbers
AC0302-0000013.tif (AC Scan)
Scope and Contents
Sideview of a bust of Emile Bachelet.
Scientists
Sculpture
Busts
Inventors
Laboratories
Engineering
Photographs
Bachelet, Emile, 1863-1946
[Working Model of Magnetically Levitated Railway] [Photograph]
Archival Resource Key
Bachelet, Emile, 1863-1946
1 Item
Silver gelatin on paper.
7.1 x 9.0 in.
Circa 1908-1910
English.
1
12
[Working Model of Magnetically Levitated Railway] [Photograph]
Local Numbers
AC0302-0000015.tif (AC Scan)
Scope and Contents
The machine that demonstrates magnetically levitated railways.
Scientists
Inventions
Railroads
Inventors
Laboratories
Engineering
Photographs
Bachelet, Emile, 1863-1946
[Men with the working model of the magnetic levitated railway] [Photograph]
Archival Resource Key
Bachelet, Emile, 1863-1946
1 Item
Silver gelatin on paper.
6.9 x 8.8 in.
Circa 1900-1920
English.
1
12
[Men with the working model of the magnetic levitated railway] [Photograph]
Local Numbers
AC0302-0000016.tif (AC Scan)
Scope and Contents
First model of levitated railroad with Pumphrey, Miles Bracewell, Emile Bachelet, and Bracewell's chauffeur (pictured left to right)
Scientists
Inventions
Railroads
Inventors
Laboratories
Engineering
Photographs
Bachelet, Emile, 1863-1946
[Emile Bachelet at the switchboard for the magnetic levitated railway] [Photograph]
Archival Resource Key
Bachelet, Emile, 1863-1946
1 Item
Silver gelatin on paper.
6.7 x 8.7 in.
Circa 1908-1910
English.
1
12
[Emile Bachelet at the switchboard for the magnetic levitated railway] [Photograph]
Local Numbers
AC0302-0000017.tif (AC Scan)
Scope and Contents
Emile Bachelet at the switching control patron that levitated the train in one switch and applied power to mangets in another.
Scientists
Inventions
Magnets
Railroads
Inventors
Laboratories
Engineering
Photographs
Bachelet, Emile, 1863-1946
[Woman and men at a demonstration of magnetic levitated railway : black-and-white photoprint.]
Archival Resource Key
Bachelet, Emile, 1863-1946
1 Item
Silver gelatin on paper.
6.7 x 8.7 in.
1914
English.
1
12
[Woman and men at a demonstration of magnetic levitated railway : black-and-white photoprint.]
Local Numbers
AC0302-0000018.tif (AC Scan)
Scope and Contents
"The Most Beautiful Woman in London" at a demonstration of the magnetically levitated railway at Bachelet Works, the laboratoy in London.
Scientists
Demonstrations
Inventions
Magnets
Railroads
Inventors
Laboratories
Engineering
Photographs -- 1900-1910 -- Black-and-white photoprints
Bachelet, Emile, 1863-1946
[Duke and Duchess of Teck come for a demonstration : black-and-white photoprint.]
Archival Resource Key
Bachelet, Emile, 1863-1946
Bachelet, Albert E.
1 Item
Silver gelatin on paper.
6.6 x 8.5 in.
Circa 1914
English.
1
12
[Duke and Duchess of Teck come for a demonstration : black-and-white photoprint.]
Local Numbers
AC0302-0000019.tif (AC Scan)
Scope and Contents
The Duke and Duchess of Teck come for a demonstration of the Bachelet magnetically-levitated railway of the London laboratory; from the Daily Graphic. Some men wear top hats.
Biographical / Historical
Apparently this duke was born Prince Adolphus of Teck, and later became the second Duke of Tech, later Adolphus Cambridge, first Marquess of Cambridge, 1868-1927. See http://en.wikipedia.org/wiki/Adolphus_Cambridge,_1st_Marquess_of_Cambridge.
top hats
Scientists
Demonstrations
Inventions
Magnets
Railroads
Inventors
Laboratories
Engineering
London (England)
Photographs -- 1900-1910 -- Black-and-white photoprints
Bachelet, Emile, 1863-1946
[Lord Mayor of London comes for a demonstration : black-and-white photoprint.]
Archival Resource Key
Bachelet, Emile, 1863-1946
Bachelet, Albert E.
1 Item
Silver gelatin on paper.
6.5 x 8.6 in.
Circa 1914
English.
1
12
[Lord Mayor of London comes for a demonstration : black-and-white photoprint.]
Local Numbers
AC0302-0000020.tif (AC Scan)
Scope and Contents
Emile Bachelet and the Lord Mayor of London, Sir T. Vansittart Bowater, wearing a top hat, come for a demonstration of the magnetic levitated railway at Bachelet Works in London.
Mayors
Scientists
Demonstrations
Inventions
Magnets
Railroads
Inventors
Laboratories
Engineering
London (England)
Photographs -- 1910-1920 -- Black-and-white photoprints -- Silver gelatin
Bachelet, Emile, 1863-1946
[First experimental model of equipment for magnetic levitation : black-and-white photoprint.]
Archival Resource Key
Bachelet, Emile, 1863-1946
Bachelet, Albert E.
1 Item
Silver gelatin on paper.
6.5 x 8.6 in.
Circa 1908
English.
1
12
[First experimental model of equipment for magnetic levitation : black-and-white photoprint.]
Local Numbers
AC0302-0000021.tif (AC Scan)
Scope and Contents
The equipment used to create a model for a magnetic levitation railway.
Scientists
Demonstrations
Inventions
Magnets
Railroads
Inventors
Laboratories
Engineering
Photographs -- 1900-1910 -- Black-and-white photoprints
Bachelet, Emile, 1863-1946
Mechanical Movement
Archival Resource Key
1929
3
2
Mechanical Movement
[Emile Bachelet and his brother on the platform : black-and-white photoprint.]
Archival Resource Key
Bachelet, Emile, 1863-1946
Bachelet, Albert E.
1 Item
mounted.; Silver gelatin on paper
9.1 x 11.1 in.
Circa 1900-1920
English.
3
2
[Emile Bachelet and his brother on the platform : black-and-white photoprint.]
Local Numbers
AC0302-0000022.tif (AC Scan)
Scope and Contents
Six men, including Emile Bachelet and his brother, working in a factory with a large machine in the middle.
Condition
Mount board brittle, with losses.
Scientists
Demonstrations
Inventions
Magnets
Railroads
Inventors
Laboratories
Engineering
Bachelet, Emile, 1863-1946
[Emile Bachelet and his men worked the switchboard for the Victoria Theater : black-and-white photoprint.]
Archival Resource Key
Bachelet, Emile, 1863-1946
Bachelet, Albert E.
1 Item
Silver albumen? on paper, mounted.
9.0 x 13.9 in.
Circa 1895
English.
3
2
[Emile Bachelet and his men worked the switchboard for the Victoria Theater : black-and-white photoprint.]
Local Numbers
AC0302-0000023.tif (AC Scan)
Scope and Contents
Eight men, including Emile Bachelet, in front of a store with a large switchboard.
Condition
Mount board severely damaged and deteriorating, causing cracks in the photograph.
Theaters
Scientists
Demonstrations
Inventions
Magnets
Railroads
Inventors
Laboratories
Engineering
Washington
Photographs -- 1890-1900 -- Black-and-white photoprints -- Silver albumen
Bachelet, Emile, 1863-1946
[Emile Bachelet's free energy model on the shelf : black-and-white photoprint.]
Archival Resource Key
Bachelet, Emile, 1863-1946
Bachelet, Albert E.
1 Item
Silver gelatin on paper.
10.2 x 13.2 in.
Circa 1945
English.
3
2
[Emile Bachelet's free energy model on the shelf : black-and-white photoprint.]
Local Numbers
AC0302-0000024.tif (AC Scan)
Scope and Contents
Emile Bachelet's model for free energy machines on shelf with other study models, and a bust of Emile Bachelet above the machines.
Scientists
Demonstrations
Inventions
Magnets
Railroads
Inventors
Laboratories
Engineering
Poughkeepsie (N.Y.)
Photographs -- 1940-1950 -- Black-and-white photoprints -- Silver gelatin
Bachelet, Emile, 1863-1946
Free Energy Machine
Archival Resource Key
1945
3
2
Newspaper Clippings and Scrapbook
Series 5
Archival Resource Key
1912 - 1973
Newspaper clippings
Archival Resource Key
1912 - 1973
3
4
Scrapbook
Archival Resource Key
1914
3
5
Miscellaneous
Series 6
Archival Resource Key
1915 - 1917
Visitors Book to Bachelet Lab
Archival Resource Key
1915 - 1916
2
1
Brochures about Bachelet's Wave Generator Machine
Archival Resource Key
undated
2
2
Notes of S. Stokvis on the Electro Magnetic Shuttle Driving Apparatus
Archival Resource Key
1915
2
3
Notes of S. Stokvis on the Electro Magnetic Shuttle Driving Apparatus
Drawings for Means of Harnessing the Force of Gravitational Energy
Archival Resource Key
1917
3
3