Audio speaker

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

Patent

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Details

D14216

Patent

active

D03644057

REFERENCES:
patent: D223028 (1972-02-01), Sperrazza
patent: D276806 (1984-12-01), Eberbach
patent: D280273 (1985-08-01), Goldman
patent: 4270023 (1981-05-01), Beveridge

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