Title:
Composite beam
United States Patent 3238690
Inventors:
Burdette, Wilkins William
Publication Date:
03/08/1966
Export Citation:
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Assignee:
Reinforced, Plastic Container C.
Primary Class:
52/847
Other Classes:
52/423, 52/843, 156/313
International Classes:
E04C3/29; E04C3/29
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US Patent References:
2739092Manufacture of reinforced paper and product
1473842Structural element
1368594Reinforced wooden beam
1269140N/A
0491092N/A