Ceiling light heater
United States Patent 3068341
US Patent References:
Electric fan and heater
- - 2583754

Ceiling heater and ventilator
- - 2689906

Ceiling heater
- - 2708232

Combined heating and ventilating unit
- - 2870319


Inventors:
Ortiz, Ralph G.
Cuthbert, Grant
Markel, Morris L.
Publication Date:
12/11/1962
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Assignee:
Ortiz, Ralph G.
Cuthbert, Grant
Markel, Morris L.
Primary Class:
219/220
Other Classes:
392/436
International Classes:
F21V21/04; F21V29/02; F21V33/00; F24H3/04; F21V21/02; F21V29/00