Headphone

Details Headphone Headphone

1985-02-22

1987-08-04

Ansher, Bernard

Recording, communication, or information retrieval equipment

Computer, data processor equipment

Patent

active

D02911981

REFERENCES:
patent: D246519 (1977-11-01), Kato
Stereo Review, Oct. 1983, p. 70, top of page-Sony Model WM-D6.
Best Products 1984/1985 Catalog, p. 294H, item 11-Sony Stereo Headphone Model MDR-A50LV.

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