Headset earmuff

Details Headset earmuff Headset earmuff

1991-11-06

1993-12-07

Ansher, Bernard

Recording, communication, or information retrieval equipment

Video or audio transmission, recording or playback equipment

Element or attachment

D29 19

Patent

active

D03420710

REFERENCES:
patent: D270634 (1983-09-01), Ungar
patent: D292331 (1987-10-01), Bryant
patent: D319241 (1991-08-01), Daido et al.
patent: D328074 (1992-07-01), Yamazaki et al.
patent: 961765 (1910-06-01), Fassler
patent: 2693599 (1954-11-01), Berg
patent: 3249949 (1966-05-01), Rosenberg et al.
patent: 4546215 (1985-10-01), Ferraro
patent: 4571746 (1986-02-01), Gorike
patent: 4654898 (1987-04-01), Ishikawa
patent: 4669129 (1987-06-01), Chance
patent: 4689822 (1987-08-01), Houng
patent: 5095382 (1992-03-01), Abe

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