Loudspeaker

Details Loudspeaker Loudspeaker

1987-11-25

1989-11-14

Ansher, Bernard

Recording, communication, or information retrieval equipment

Video or audio transmission, recording or playback equipment

Telephone equipment

D14213

Patent

active

D03045862

REFERENCES:
patent: D216019 (1969-11-01), Patch et al.
patent: D241554 (1976-09-01), Bertagni et al.
patent: D249683 (1978-09-01), Rams
patent: D265990 (1982-08-01), Hartwein et al.
Audio, Nov. 1986, p. 42, Top Left--Duntech Sovereign 2001.

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