Prototype DTMF text message generator

Prototype DTMF text message generator

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Location
Currently not on view
Object Name
telephone accessory
Measurements
overall: 7.6 cm x 22.8 cm x 19 cm; 3 in x 9 in x 7 1/2 in
ID Number
2000.0101.12
catalog number
2000.0101.12
accession number
2000.0101
Credit Line
from PhoneTel Communications Inc., thru Daniel Henderson
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Work and Industry: Electricity
Data Source
National Museum of American History
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