Loudspeaker

Details Loudspeaker Loudspeaker

1976-09-17

1978-10-17

Burke, Wallace R.

Recording, communication, or information retrieval equipment

Computer, data processor equipment

D1401

Patent

active

D02499410

REFERENCES:
patent: D205663 (1966-09-01), Seebinger
1974 Lafayette Catalog No. 740, p. 55, Multicellular Diffuser in Speaker System, top left side of page.
1974 Lafayette Catalog No. 740, p. 193, Model PA-30A, Paging Projector C, center of page.

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