Headset

Details Headset Headset

1992-09-28

1994-05-10

Ansher, Bernard

Recording, communication, or information retrieval equipment

Video or audio transmission, recording or playback equipment

Speaker or housing therefor

Patent

active

D03468020

REFERENCES:
patent: D153112 (1949-03-01), Braun et al.
patent: D286874 (1986-11-01), Bertagna et al.
patent: D287849 (1987-01-01), O'Malley et al.
patent: D292205 (1987-10-01), Kikutani
patent: D318053 (1991-07-01), Ludeke et al.
patent: D327265 (1992-06-01), Jasey
patent: D337116 (1993-07-01), Hattori
patent: 1555927 (1925-10-01), Lidberg
patent: 2025398 (1935-12-01), Pocock et al.
patent: 4588868 (1986-05-01), Bertagna et al.
patent: 4634816 (1987-01-01), O'Malley et al.
patent: 4689822 (1987-08-01), Houng
Telephony, Jan. 26, 1987 p. 63 Plantronics Headset.
Hello Direct Catalog, Winter 1991, p. 8 Dual Receiver Headset, bottom center.

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