Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Telephone equipment
Patent
1992-10-23
1993-08-17
Burke, Wallace R.
Recording, communication, or information retrieval equipment
Video or audio transmission, recording or playback equipment
Telephone equipment
D18 4
Patent
active
D03384543
REFERENCES:
patent: D260990 (1981-09-01), Williams
patent: D269623 (1983-07-01), Kato et al.
patent: D303537 (1989-09-01), Kato et al.
patent: D304444 (1989-11-01), Ikeya
patent: D308857 (1990-06-01), Bianco
patent: D310212 (1990-08-01), Forsythe
patent: D319251 (1991-08-01), Ishida et al.
patent: D320036 (1991-09-01), Chen
patent: 5113060 (1992-05-01), Wike, Jr. et al.
Office Products May 1979 p. 88 Electronic Cash Register.
Burke Wallace R.
International Business Machines - Corporation
Nunn Freda S.
Strimaitis Romualdas
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