Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Telephone equipment
Patent
1991-12-16
1993-10-12
Burke, Wallace R.
Recording, communication, or information retrieval equipment
Video or audio transmission, recording or playback equipment
Telephone equipment
Patent
active
D03402363
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"SDT" specification sheet, Symbol Technologies, 1989.
"RZ-5510" Specification Sheet, Sharp Corp., 1989.
Crutchfield Catalog Item Logitech Scanner, p. 36, 1992.
Burke Wallace R.
Symbol Technologies Inc.
Tung M. H.
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