Self-recording voltmeter, by Richard Freres, 1892-1893
- Made:
- 1892-1893
- maker:
- Richard Frères
Self-recording voltmeter, 120 volts, by Richard Freres (43 London Wall, E.C.)
Details
- Category:
- Electricity and Magnetism
- Object Number:
- 1961-232
- type:
- voltmeter
- credit:
- King's College, London