App's clockwork interrupter

Made:
1890
maker:
Alfred Apps
App's clockwork interrupter

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App's clockwork interrupter
Science Museum Group
© The Board of Trustees of the Science Museum

App's clockwork interrupter

Details

Category:
Electricity and Magnetism
Object Number:
1935-325
type:
interrupter
credit:
Lt. Col. Sir Francis McClean.