Headphone

Details Headphone Headphone

1992-07-20

1994-06-14

Ansher, Bernard

Recording, communication, or information retrieval equipment

Video or audio transmission, recording or playback equipment

Speaker or housing therefor

Patent

active

D03478459

REFERENCES:
patent: D254183 (1980-02-01), Doodson
patent: D291198 (1987-08-01), Bellini
patent: D297324 (1988-08-01), Kohno
patent: D300133 (1989-03-01), Daidoh et al.
patent: D310081 (1990-08-01), Daido et al.
patent: D316861 (1991-05-01), Yoda et al.
patent: D319241 (1991-08-01), Daido et al.
patent: D323167 (1992-01-01), Yamazaki et al.
patent: 5095382 (1992-03-01), Abe
HiFi Design Jan. 1987, p. 100, Azden DSR-48 Headphone.
Radio Shack 1988 Catalog, p. 44, Realistic Nova-52 Headphones.

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