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Locomotion
National Railway Museum
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Locomotion
National Railway Museum
National Science and Media Museum
Science and Industry Museum
Science and Innovation Park
Science Museum
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Image
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2
Non-Commercial Use
2
Category
Laboratory Medicine
1
Psychology, Psychiatry & Anthropometry
1
Maker
Cambridge Instrument Company Limited
1
Cambridge Scientific Instrument Company Limited
1
Jaquet (maker)
1
Object type
time marker
2
Place
Switzerland
1
Date
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Electromagnetic device, Deprez signal time marker for use with kymograph
1924
Time marker
1930