Ceiling speaker

Details Ceiling speaker Ceiling speaker

1975-12-17

1978-03-21

Ansher, Bernard

Recording, communication, or information retrieval equipment

Computer, data processor equipment

D1401

Patent

active

D02475626

REFERENCES:
patent: D232035 (1974-07-01), Rigney, Jr.
patent: D238185 (1975-12-01), Wellward
patent: D242151 (1976-11-01), Wellward
Sweets Architectural Cat. File, 1970, Section 31/a/Ma, Poly-Groove Baffle Reflector Ceiling Lamp.
Hi-Hats Ceiling Light, item No. 3060.

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