Transceiver having interphone system

Details Transceiver having interphone system Transceiver having interphone system

1981-04-09

1983-07-05

Bookbinder, Marc E.

Telecommunications

Transmitter and receiver at same station

Convertible

179 1VE, 179 2B, 179 2E, 455 78, 455 89, 455 99, 455345, H04B 140

Patent

active

043922430

ABSTRACT:
A transceiver having an interphone system which is comprised of two transmitter and receiver units, a transceiver, an interphone and switching means for selectively connecting the transmitting and receiving units to the transceiver or the interphone.

REFERENCES:
patent: 2141323 (1938-12-01), Troisi
patent: 2616973 (1952-11-01), Mantz
patent: 3999015 (1976-12-01), Snyder et al.
patent: 4206409 (1980-06-01), McKinney

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