Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Telephone equipment
Patent
1991-10-18
1994-03-22
Burke, Wallace R.
Recording, communication, or information retrieval equipment
Video or audio transmission, recording or playback equipment
Telephone equipment
Patent
active
D03453464
REFERENCES:
patent: D307134 (1990-04-01), Makidera
patent: D315549 (1991-03-01), Clough et al.
patent: D317151 (1991-05-01), Daly
patent: D321172 (1991-10-01), Moore, IV et al.
patent: D333814 (1993-03-01), Swanson et al.
patent: 4972496 (1990-11-01), Sklarew
Grid System on "Dempa Shimbun" Mar. 27, 1989 Pen Style Computer.
Alfonso Pedro M.
Ansell Daniel F.
Benck Jeffrey W.
Foy Hunter T.
Sapper Richard F.
Burke Wallace R.
Grosser George E.
International Business Machines Corp.
Nunn Freda S.
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