Three keypad pushbutton set for telecommunications instruments

Details Three keypad pushbutton set for telecommunications instruments Three keypad pushbutton set for telecommunications instruments

1986-10-22

1990-01-09

Fay, Jr., Horace B.

Recording, communication, or information retrieval equipment

Video or audio transmission, recording or playback equipment

Element or attachment

D14204

Patent

active

D03054225

REFERENCES:
patent: D219027 (1970-10-01), Miller
patent: D249511 (1978-09-01), Olson
patent: D265648 (1982-08-01), Fukushima et al.
patent: D265735 (1982-08-01), Fukushima et al.
patent: D269512 (1983-06-01), Goldberg
patent: 3668356 (1972-06-01), Kekas
patent: 3736397 (1973-05-01), Pedersen
patent: 3780237 (1973-12-01), Seeger, Jr. et al.
patent: 3871506 (1975-03-01), Von Luders
patent: 4529849 (1985-07-01), Kamei et al.
patent: 4540865 (1985-10-01), Calder

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