Joist construction
United States Patent 2864471
US Patent References:
/0114039.html
- - 0114039

Truss
- - 1935758

Composite structure
- - 2004907

Truss
- - 2061103

Structural unit
- - 2246215


Inventors:
Williams, John K.
Publication Date:
12/16/1958
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Assignee:
CENTRAL TEXAS IRON WORKS
Primary Class:
52/692
Other Classes:
52/693
International Classes:
E04C3/08; E04C3/04
US Patent References:
2256812Method of fabricating joists
Foreign References:
GB191303829A
GB659285A
AT176332B