Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Telephone equipment
Patent
1990-05-31
1992-07-14
Burke, Wallace R.
Recording, communication, or information retrieval equipment
Video or audio transmission, recording or playback equipment
Telephone equipment
D14114
Patent
active
D03278824
REFERENCES:
patent: D297939 (1988-10-01), Bradbury et al.
patent: D317153 (1991-05-01), MacKenzie
patent: 4917516 (1990-04-01), Retter
patent: 5063376 (1991-11-01), Chang
George Christopher S.
Harden Daniel
Burke Wallace R.
Handykey Corporation
Nunn Freda S.
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