Direct reading two-range voltmeter

SMG00256847

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SMG00256847
Science Museum Group
© The Board of Trustees of the Science Museum

Direct reading two-range voltmeter, patented 1888, November 6th, No.6721

Details

Category:
Electricity and Magnetism
Object Number:
1962-127
type:
voltmeter
credit:
City and Guilds College