Headphone

Details Headphone Headphone

Filed on

1978-06-01

Date issued

1981-03-03

Examiner

Ansher, Bernard

Patent Class

Recording, communication, or information retrieval equipment

SubClass

Computer, data processor equipment

Other Related Categories

D14 68, D1403

Type

Patent

Status

active

Patent number

D02584301

Description

REFERENCES:
patent: D235149 (1975-05-01), Dascal
patent: D237307 (1975-10-01), Miyamoto et al.
patent: D244037 (1977-04-01), Warner
patent: D246242 (1977-11-01), Bellini
patent: D246519 (1977-11-01), Koto

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Also associated with

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