Key telephone set with speaker phone

Details Key telephone set with speaker phone Key telephone set with speaker phone

1987-03-12

1988-12-13

Fay, Horace B.

Recording, communication, or information retrieval equipment

Computer, data processor equipment

D14 62, D14 57, D14 65

Patent

active

D02989387

REFERENCES:
patent: D276338 (1984-11-01), Pardo
patent: D279289 (1985-06-01), Bhat et al.
patent: D282841 (1986-03-01), Inaka
patent: D283508 (1986-04-01), Miyaka
patent: D284078 (1986-06-01), Yamagami et al.
patent: D286875 (1986-11-01), Cameron
patent: D290700 (1987-07-01), Lindahl
patent: D291565 (1987-08-01), Okuda
patent: D294351 (1988-02-01), Richter et al.
patent: 4445008 (1984-04-01), Rocca et al.
patent: 4568801 (1986-02-01), Gates et al.
Tele-Product News; Ultra Dial by Buscom.
B. A. Pargh Co. Inc. 1983 Catalog, Panasonic at page 37; Nos. KXT 2010; KXT 2220; KXT 2130.

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