Control console set for telephone exchanges

Details Control console set for telephone exchanges Control console set for telephone exchanges

1989-03-21

1990-06-19

Fay, Jr., Horace B.

Recording, communication, or information retrieval equipment

Video or audio transmission, recording or playback equipment

Element or attachment

D14149

Patent

active

D03086801

REFERENCES:
patent: D254436 (1980-03-01), Bakal
patent: D273954 (1984-05-01), Bee
patent: D298126 (1988-10-01), Weisz et al.
patent: D298937 (1988-12-01), Dunstall et al.
patent: D300029 (1989-02-01), Kido et al.
patent: D300320 (1989-03-01), Watanabe et al.
patent: 4097691 (1978-06-01), Ehrlich et al.
patent: 4385212 (1983-05-01), Tyler
patent: 4773090 (1988-09-01), Gaatman
patent: 4782514 (1988-11-01), Oshikata et al.
patent: 4817132 (1989-03-01), Chamberlin
Commutation of Transmission (France), Dec. 1984; at p. 6-"C/ Set" Attendant Position for Dia/ Exchange.

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