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

D14221, 1401

Patent

active

D03936414

REFERENCES:
patent: D225069 (1972-11-01), May
patent: D244698 (1977-06-01), Babb
patent: D250586 (1978-12-01), Nussdorfer et al.
patent: 2924290 (1960-02-01), Zuerker
patent: 4815558 (1989-03-01), Krainhofer
patent: 5153915 (1992-10-01), Farella
Sony Style catalog, Spring/Summer 1993, p. 121, XS-6012, 6-1/2" Dual Cone Speaker.

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