Headphone earpiece

Details Headphone earpiece Headphone earpiece

1989-07-28

1992-06-09

Shooman, Theodore M.

Recording, communication, or information retrieval equipment

Video or audio transmission, recording or playback equipment

Element or attachment

D14205

Patent

active

D03268551

REFERENCES:
patent: D227908 (1973-07-01), Romano
patent: D244037 (1977-04-01), Warner et al.
patent: D244213 (1977-05-01), Besasie
patent: D299129 (1988-12-01), Wiegel
patent: 4944361 (1990-07-01), Lindgren et al.

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