Emergency telephone unit

Details Emergency telephone unit Emergency telephone unit

1991-12-18

1993-10-26

Douglas, Alan P.

Recording, communication, or information retrieval equipment

Video or audio transmission, recording or playback equipment

Telephone equipment

Patent

active

D03407144

REFERENCES:
patent: D248234 (1978-06-01), Genaro et al.
patent: D297733 (1988-09-01), Watanabe
patent: D299493 (1989-01-01), Watanabe
patent: D300429 (1989-03-01), Watanabe
patent: D300826 (1989-04-01), Ng
patent: D308381 (1990-06-01), Dehnert
The Shelburne Co. Holiday 1983 catalog, p. 15, Electra Clock Radio Phone.

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