Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Speaker or housing therefor
Patent
1990-06-04
1993-06-15
Rademaker, Charles A.
Recording, communication, or information retrieval equipment
Video or audio transmission, recording or playback equipment
Speaker or housing therefor
Patent
active
D03364755
REFERENCES:
patent: D210382 (1968-03-01), Lane
patent: D242552 (1976-11-01), Maeda
patent: D270532 (1983-09-01), Weinstein
patent: 3026957 (1962-03-01), Gladstone
patent: 3967065 (1976-06-01), Ward
patent: 4014597 (1977-03-01), Griffin
Infinity Systems Inc.
Rademaker Charles A.
Ryther James P.
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