Speakerphone

Details Speakerphone Speakerphone

1978-01-30

1980-09-02

Ansher, Bernard

Recording, communication, or information retrieval equipment

Computer, data processor equipment

D14 64, D1403

Patent

active

D02566915

REFERENCES:
patent: D226199 (1973-01-01), Breger
patent: D234849 (1975-04-01), Tyson et al.
patent: D238079 (1975-12-01), Heribertson et al.
patent: D245500 (1977-08-01), Fukushima
patent: 3659050 (1972-04-01), Carlsson et al.
patent: 3751600 (1973-08-01), Reichard, Jr.

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