Earphone

Details Earphone Earphone

1991-08-07

1993-07-06

Ansher, Bernard

Recording, communication, or information retrieval equipment

Video or audio transmission, recording or playback equipment

Element or attachment

Patent

active

D03371190

REFERENCES:
patent: D311007 (1990-10-01), Daido
patent: D314574 (1991-02-01), Kato
patent: D316550 (1991-04-01), Sogabe
patent: D318473 (1991-07-01), Miyashita et al.
patent: D318670 (1991-07-01), Taniguchi
patent: D326655 (1992-06-01), Iribe
patent: 4668842 (1987-05-01), Yokoyama et al.
patent: 4742887 (1988-05-01), Yamagishi
patent: 4965838 (1990-10-01), Kamon et al.
Radio Shack 1988 Catalog p. 44, Foam Earpads, bottom.
Evans 1988 Catalog p. 278 Ear Bud Headphone, Item 10.

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