Blake standard telephone transmitter, patent #250,126 through 250,129

Blake standard telephone transmitter, patent #250,126 through 250,129

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Currently not on view
Object Name
Telephone Transmitter
Other Terms
Telephone Transmitter; Telephones; Transmitter
associated person
Blake, Jr., Francis
overall: 2 1/2 in x 5 in x 6 in; 6.35 cm x 12.7 cm x 15.24 cm
ID Number
catalog number
accession number
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Work and Industry: Electricity
Data Source
National Museum of American History
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