Telephone

Details Telephone Telephone

1983-09-09

1986-02-11

Burke, Wallace R.

Recording, communication, or information retrieval equipment

Computer, data processor equipment

D14 53, D14 60, D14 62

Patent

active

D02825457

REFERENCES:
patent: D211739 (1968-07-01), Dreyfuss
patent: D251844 (1979-05-01), Kramer
patent: D259419 (1981-06-01), Carter
patent: D265087 (1982-06-01), Yamaguchi et al.
patent: D269089 (1983-05-01), Foggia et al.
patent: D269674 (1983-07-01), Hirota et al.
patent: D273108 (1984-03-01), Breger
patent: D275481 (1984-09-01), Foggia et al.
patent: D277929 (1985-03-01), Sakamoto et al.
patent: D278337 (1985-04-01), Banko
Stromberg-Carlson "Crossreed" 400, PBX Booklet.

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