Direct station telephone selector

Details Direct station telephone selector Direct station telephone selector

1988-08-22

1989-10-03

Fay, Jr., Horace B.

Recording, communication, or information retrieval equipment

Video or audio transmission, recording or playback equipment

Element or attachment

D14142, D14150

Patent

active

D03038017

REFERENCES:
patent: D259933 (1981-07-01), Foggia et al.
patent: D266086 (1982-09-01), Foggia et al.
patent: D271763 (1983-12-01), Brown et al.
patent: D273370 (1984-04-01), Eilent
patent: D273954 (1984-05-01), Bee
patent: D277181 (1985-01-01), Heim et al.
patent: D287723 (1987-01-01), Kido
patent: 4385212 (1983-05-01), Tyler

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