Speaker

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

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Patent

active

D03303764

REFERENCES:
patent: D289040 (1987-03-01), Olsen
patent: D306168 (1990-02-01), Caputo
patent: 4033430 (1977-07-01), Bolden
patent: 4122910 (1978-10-01), Weaner

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