Telephone network interface apparatus

Details Telephone network interface apparatus Telephone network interface apparatus

1989-08-07

1991-02-05

Fay, Jr., Horace B.

Recording, communication, or information retrieval equipment

Video or audio transmission, recording or playback equipment

Telephone equipment

D14240, D14256

Patent

active

D03143856

REFERENCES:
patent: D235108 (1975-05-01), DeLuca
patent: D247897 (1978-05-01), DeLuca
patent: D287963 (1987-01-01), Fasano et al.
patent: 4516818 (1985-05-01), Johnston et al.
patent: 4658418 (1987-04-01), Rodgers
patent: 4712232 (1987-12-01), Rodgers
patent: 4749359 (1988-06-01), White
patent: 4775324 (1988-10-01), Norden
patent: 4875232 (1989-10-01), Shumway

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