Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Telephone equipment
Patent
1990-03-21
1992-04-21
Burke, Wallace R.
Recording, communication, or information retrieval equipment
Video or audio transmission, recording or playback equipment
Telephone equipment
Patent
active
D03255735
REFERENCES:
patent: D277189 (1985-01-01), Shibata
patent: D281504 (1985-11-01), Davis et al.
patent: D289765 (1987-05-01), Eto et al.
patent: D290705 (1987-07-01), Yomo
patent: D302427 (1989-07-01), Pushelberg
patent: D311737 (1990-10-01), Westwood et al.
patent: 4823311 (1989-04-01), Hunter et al.
Bell Atlantic Business Supplies, 1988, p. 14, 3M Compac Tape Cartridge.
Glegg Andrew
Riddiford Martin P.
Burke Wallace R.
Nunn Freda S.
Psion plc
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