Title:
Air control device such as a diffuser or the like
United States Patent 3180246
Inventors:
Johnson, Edward H.
Publication Date:
04/27/1965
Export Citation:
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Assignee:
American, Warming Ventilation
Primary Class:
454/319
Other Classes:
49/74.1, 49/80.1, 49/90.1
International Classes:
F24F13/075; F24F13/06
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US Patent References:
3055284Dampers
2600934Adjustable deflector
2137426Window construction