Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Telephone equipment
Patent
1992-04-24
1994-03-29
Burke, Wallace R.
Recording, communication, or information retrieval equipment
Video or audio transmission, recording or playback equipment
Telephone equipment
Patent
active
D03455483
REFERENCES:
patent: D249345 (1978-09-01), Oliveira et al.
patent: D257976 (1981-01-01), Schmidt
patent: D310069 (1990-08-01), Leone et al.
P831 Operator's Guide, p. II-4.
Carlson Casey L.
Dotterman Perry S.
Giebler Mark J.
Munthe Bert A.
Bauer William D.
Burke Wallace R.
Griswold Gary L.
Kirn Walter N.
Minnesota Mining and Manufacturing Company
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