Alfred Apps 1839 - 1913

occupation:
Electrical instrument maker, Mathematical instrument maker, Optical instrument maker
Nationality:
British

1839-1913, optical, mathematical & electrical instrument maker, British

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Trade card: Alfred Apps

Induction coil for use with X-ray apparatus

Early hand break

Universal shunt

Early form of mercury interrupter

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Patent section line ruler

Compass-clinometer, Bagot's Patent (No 2227 of 1876) by Apps

Early electro-magnetic engine by Alfred Apps, London

Demonstration Wheatstone bridge

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