Forty-button auxiliary telephone module with single screen

Details Forty-button auxiliary telephone module with single screen Forty-button auxiliary telephone module with single screen

1988-06-23

1991-01-08

Fay, Jr., Horace B.

Recording, communication, or information retrieval equipment

Video or audio transmission, recording or playback equipment

Element or attachment

D14240

Patent

active

D03136019

REFERENCES:
patent: Re31144 (1983-02-01), Feil
patent: D251296 (1979-03-01), Haas
patent: D260883 (1981-09-01), Husfed
patent: D273109 (1984-03-01), Breger
patent: D280406 (1985-09-01), Walker
patent: D288563 (1987-03-01), Story et al.
patent: D289643 (1987-05-01), Genaro et al.
patent: D290354 (1987-06-01), Ryan
patent: D290707 (1987-07-01), Allan et al.
patent: D293440 (1987-12-01), Britz
patent: D299029 (1988-12-01), Williams
patent: D300140 (1989-03-01), Cain et al.
patent: D304338 (1989-10-01), Lermon
patent: D305909 (1990-02-01), Feger et al.

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