Telephone Transmitter and Receiver
Description:
Patent for a telephone transmitter and receiver. The device is for lines "known as 'long-distance' telephones for the purpose of taking up the weakened vibrations and re-energizing them...transmitting them with increased volume" (line 12-15) illustration included.
Date:
June 30, 1903
Creator:
Sammons, Oliver P.
Item Type:
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Patent
Partner:
UNT Libraries Government Documents Department