Roof construction
United States Patent 2833229
US Patent References:
Ventilated roof and similar structure
- - 1931066

Protective device
- - 2435167


Inventors:
Donegan, Joseph W.
Publication Date:
05/06/1958
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Assignee:
ALLIED CHEM & DYE CORP
Primary Class:
Other Classes:
454/367, 52/516
International Classes:
E04D11/02; E04D13/17; E04D11/00; E04D13/00