Memorandum input and output device

Details Memorandum input and output device Memorandum input and output device

1991-11-01

1993-11-02

Burke, Wallace R.

Recording, communication, or information retrieval equipment

Video or audio transmission, recording or playback equipment

Telephone equipment

D18 7

Patent

active

D03409171

REFERENCES:
patent: D308692 (1990-06-01), Sakaguchi et al.
patent: D324513 (1992-03-01), Sakaguchi et al.
patent: D328089 (1992-07-01), Haneda
patent: D333298 (1993-02-01), Raslowsky et al.

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