Telephone answering machine

Details Telephone answering machine Telephone answering machine

1993-03-04

1995-02-07

Douglas, Alan P.

Recording, communication, or information retrieval equipment

Video or audio transmission, recording or playback equipment

Telephone equipment

Patent

active

D03551873

REFERENCES:
patent: D298315 (1988-11-01), Maliskas
patent: D304338 (1989-10-01), Sermon
patent: D305121 (1989-12-01), Pfeifer et al.
patent: D307433 (1990-04-01), White
patent: D328069 (1992-07-01), Langton
patent: D334571 (1993-04-01), Westwood
patent: D340057 (1993-10-01), Wetzel et al.

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