Telephone answering unit

Details Telephone answering unit Telephone answering unit

1980-10-30

1982-09-14

Ansher, Bernard

Recording, communication, or information retrieval equipment

Computer, data processor equipment

D14 6, D1403

Patent

active

D02661624

REFERENCES:
patent: D227784 (1973-07-01), Janda et al.
patent: D259561 (1981-06-01), Baum
patent: D262875 (1982-02-01), Franchi et al.
patent: 3700818 (1972-10-01), Tatematsu et al.
patent: 3904826 (1975-09-01), Murata et al.
patent: 3968329 (1976-07-01), Darwood
patent: 4309571 (1982-01-01), Chamberlin

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