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Telephone Transmitter

Description: Patent for a telephone transmitter. Illustration included.
Date: June 6, 1905
Creator: Fletcher, Milton J.
Partner: UNT Libraries Government Documents Department

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.
Partner: UNT Libraries Government Documents Department
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