Speaker

Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Speaker or housing therefor

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Patent

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D03409295

REFERENCES:
patent: D228139 (1973-08-01), Ishikawa
patent: D239035 (1976-03-01), Ross
patent: D239036 (1976-03-01), Ross
patent: D255794 (1980-07-01), Rams
Design 474 Jun. 1988 B&W speaker, top middle.
Crutchfield Winter/Spring 1991 .COPYRGT.1990 p. 92 EPI 70 Series II, bottom left.

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