Telephone unit

Details Telephone unit Telephone unit

1976-08-30

1979-01-30

Ansher, Bernard

Recording, communication, or information retrieval equipment

Computer, data processor equipment

D14 53, D1403

Patent

active

D02509563

REFERENCES:
patent: D229194 (1973-11-01), Ishikawa
patent: D232740 (1974-09-01), Takahashi
patent: D233764 (1974-11-01), Marchese
patent: D234520 (1975-03-01), Marchese
patent: D243961 (1977-04-01), Buchin et al.

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