Transmitter for a headphone

Details Transmitter for a headphone Transmitter for a headphone

1989-04-14

1992-04-21

Pfeffer, Terry A.

Recording, communication, or information retrieval equipment

Video or audio transmission, recording or playback equipment

Radio transmitter

D14221

Patent

active

D03255786

REFERENCES:
patent: D297737 (1988-09-01), Vostourgh
Video Review, Mar. 1989, p. 20, Wireless headphone, upper, left corner.
Radio Shack, 1989 Catalog, p. 39, Transmitter, upper, left corner.

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