Headphone

Details Headphone Headphone

1992-08-12

1994-10-04

Ansher, Bernard

Recording, communication, or information retrieval equipment

Video or audio transmission, recording or playback equipment

Speaker or housing therefor

Patent

active

D03511723

REFERENCES:
patent: D246519 (1977-11-01), Kato
patent: D292205 (1987-10-01), Kikutani
patent: D328461 (1992-08-01), Daido et al.
patent: D337115 (1993-07-01), Yamazaki et al.
Dealerscope Merchandising, Mar. 1988 p. 83 Labtec Model-LT-200 Headphone.
Stereo Review, Dec. 1988 p. 30 Azden Headphone.
Stereo Review, Jun. 1989 p. 57 Beyerdynamic DT 690 Headphone.

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