Structural device
United States Patent 2910740
US Patent References:
Tubular construction material
- - 1608672

Window
- - 2430124

Fastening means for wall panels
- - 2803858


Inventors:
Greenman, Orval L.
Publication Date:
11/03/1959
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Assignee:
BULMAN CORP
Primary Class:
49/453
Other Classes:
16/94R, 49/413, 49/DIG.002
International Classes:
E06B3/46; E06B3/32
Foreign References:
IT298230B