Patent model, Berliner contact telephone, US Patent #241,912

Patent model, Berliner contact telephone, US Patent #241,912

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Location
Currently not on view
Object Name
Telephone
box telephone
Other Terms
Telephone; Telephones; Transmitter; Carbon
Date made
1881
maker
Berliner, Emile
Measurements
overall: 3 in x 5 in x 4 in; 7.62 cm x 12.7 cm x 10.16 cm
ID Number
EM.308624
catalog number
308624
accession number
89797
patent number
241912
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Work and Industry: Electricity
Data Source
National Museum of American History
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