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Historical patents

Technological Inventions 1850 - 1899

Metadata: Elektrische Lichtregulatoren

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Shelfmark:
33/000244
granted on:
1883-02-15
Title:
Elektrische Lichtregulatoren
Inventor:
Neumann,, Schwarz und Weill
Eliachoff, A.
Key:
1883/004723
Place of publication:
Freiburg
Country:
Germany
Class:
4 - Beleuchtungsgegenstände (außer elektrischen und Gasbeleuchtungsvorrichtungen)
21 - Elektrische Apparate, Telegraphie und Telephonie
Collection:
General
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