Telephone

Details Telephone Telephone

1984-12-04

1986-11-25

Burke, Wallace R.

Recording, communication, or information retrieval equipment

Computer, data processor equipment

D14 58, D14 62, D14 57

Patent

active

D02868768

REFERENCES:
patent: D257772 (1981-01-01), Fukutani
patent: D267091 (1982-11-01), Ohno
patent: D269612 (1983-07-01), Foggia et al.
patent: D275751 (1984-10-01), Mahan
patent: D277929 (1985-03-01), Sakamoto et al.
patent: D278533 (1985-04-01), Ando
patent: D280325 (1985-08-01), Doffe et al.
patent: D280404 (1985-09-01), Inaba
patent: D282066 (1986-01-01), Menei et al.
patent: D282463 (1986-02-01), Barr et al.
patent: D282545 (1986-02-01), Inagi et al.
Brochure: Toshiba EKTS Electronic Key Phone; published 9-1979.

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