Headphone

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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D03696049

REFERENCES:
patent: D204886 (1966-05-01), Kliewer
patent: D222361 (1971-10-01), Hart
patent: D255352 (1980-06-01), Besasie
patent: 4993074 (1991-02-01), Carroll
patent: 5138722 (1992-08-01), Urella et al.
Stereo Review Aug. 1990,p. 63, `Stanton's lightweight ST-1 circumaural pnhones` Headphone.
Stereo Review Oct. 1993, JVC HA-W75 Cordless Headphone.

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