Fabricated joist
United States Patent 2624430
US Patent References:
Bridge form
- - 1448854

Built-up truss
- - 1565879

Steel joist
- - 1597384

Steel joist
- - 1727893

Composite wood-metal structural member
- - 1899344


Inventors:
Macomber, Robert C.
Publication Date:
01/06/1953
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Assignee:
MACOMBER INC
Primary Class:
52/694
Other Classes:
29/897.310
International Classes:
E04C3/09; E04C3/04
US Patent References:
1969312Structural unit
2055701Steel joist for concrete floors
2169253Building structure and parts therefor
2457250Tubular section structural member