Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Telephone equipment
Patent
1992-01-10
1993-12-28
Burke, Wallace R.
Recording, communication, or information retrieval equipment
Video or audio transmission, recording or playback equipment
Telephone equipment
Patent
active
D03427234
REFERENCES:
patent: D283711 (1986-05-01), Deura et al.
patent: D292401 (1987-10-01), Lee et al.
patent: D297429 (1988-08-01), Pedinielli et al.
patent: D299235 (1989-01-01), Feger et al.
patent: 4845650 (1989-07-01), Meade et al.
Burke Wallace R.
Leica Heerbrugg AG
Nunn Freda S.
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