Headphone

Details Headphone Headphone

1989-04-14

1991-08-20

Shooman, Theodore M.

Recording, communication, or information retrieval equipment

Video or audio transmission, recording or playback equipment

Speaker or housing therefor

Patent

active

D03192415

REFERENCES:
patent: D297324 (1988-08-01), Kohno
patent: D305541 (1990-01-01), Hirose
patent: D310081 (1990-08-01), Daido et al.
Stereo Review; Dec. 1987; p. 77; top center--Nakamichi Model SP-7 Headphones.
Crutchfield Cat.--Summer 1986; p. 89; top right--Model MDR-M77.

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