Telephone controller or similar article

Details Telephone controller or similar article Telephone controller or similar article

1981-01-21

1983-05-10

Ansher, Bernard

Recording, communication, or information retrieval equipment

Computer, data processor equipment

D18 7, D1403, D1801

Patent

active

D02689340

REFERENCES:
patent: D250891 (1979-01-01), Renard
patent: D258062 (1981-01-01), Cusimano et al.
patent: D258507 (1981-03-01), Dietrich
patent: D267179 (1982-12-01), Yamaguchi et al.
patent: 3128351 (1964-04-01), Hahmann, Jr.
patent: 3940573 (1976-02-01), Healy et al.

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