Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Telephone equipment
Patent
1990-05-15
1993-05-04
Burke, Wallace R.
Recording, communication, or information retrieval equipment
Video or audio transmission, recording or playback equipment
Telephone equipment
D18 4
Patent
active
D03352862
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Office Products May 1979 p. 88 Electronic Cash Register.
Burke Wallace R.
International Business Machines Corp.
Nunn Freda S.
Strimaitis Romualdas
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