Speaker box with built in amplifier

Details Speaker box with built in amplifier Speaker box with built in amplifier

1990-07-31

1993-01-19

Ansher, Bernard

Recording, communication, or information retrieval equipment

Video or audio transmission, recording or playback equipment

Speaker or housing therefor

Patent

active

D03326071

REFERENCES:
patent: D256914 (1980-09-01), Rams
patent: D317007 (1991-05-01), Shintani
patent: D318054 (1991-07-01), Kikutani
patent: 3143182 (1964-08-01), Sears et al.
Stereo review Apr. 1988 p. 11 Koss Microspeaker, bottom left.
Stereo review Apr. 1988 p. 67 Bose speakers, bottom right.
Dealerscope Merchandising Sep. 1988 p. 14 Sony speakers, bottom left.

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