Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Speaker or housing therefor
Patent
1990-10-01
1992-09-22
Rademaker, Charles A.
Recording, communication, or information retrieval equipment
Video or audio transmission, recording or playback equipment
Speaker or housing therefor
Patent
active
D03296466
REFERENCES:
patent: D202899 (1965-11-01), Charlton
patent: D281157 (1985-10-01), Takagi
patent: D292283 (1987-10-01), Matsuda et al.
patent: 5000286 (1991-03-01), Crawford et al.
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