Telephone unit

Details Telephone unit Telephone unit

1979-09-27

1982-06-22

Ansher, Bernard

Recording, communication, or information retrieval equipment

Computer, data processor equipment

D14 58, D1403

Patent

active

D02650878

REFERENCES:
patent: D237091 (1975-10-01), Blumenau
patent: D248300 (1978-06-01), Hirasawa et al.
patent: D248649 (1978-07-01), Breger
patent: D257772 (1981-01-01), Fukutani
patent: 3217254 (1965-11-01), Hughes et al.

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