BUILDING ROOF STRUCTURE
United States Patent 3488905
US Patent References:
/0292738.html
- - 0292738

Building construction
- - 2164138

Marquise or canopy for buildings
- - 2474713

Free-standing roof structures
- - 2873698

Awning structure
- - 2900681


Inventors:
Campbell, William C.
Publication Date:
01/13/1970
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Assignee:
William, Campbell C.
Primary Class:
52/263
Other Classes:
52/302.300, 52/14, 52/781, 52/404.100
International Classes:
E04B7/00; E04D13/04; E04B7/00
US Patent References:
3143827Canopy assemblies
3224154Structural assembly construction
3388510Roof structure
Foreign References:
GB544610A




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