Title:
Ventilating device
Document Type and Number:
United States Patent 2579662

Inventors:
Herbert, Gibson
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Sponsored by:
Flash of Genius
Publication Date:
12/25/1951
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Assignee:
Herbert, Gibson
Primary Class:
454/365
Other Classes:
52/278
International Classes:
E04D13/17; F24F7/02; E04D13/00
US Patent References:
0111163
1124875
1359551Chimney-cowl
1441070Ventilator
2147240Roof structure
2214183Roofing and ventilated roof structure
2416284Fire-vent building
2445548Method of making box-like containers
Foreign References:
GB299171A
GB518399A




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