Construction unit
United States Patent 2682236
US Patent References:
/1009468.html
- - 1009468

Metal roofing
- - 1963583

Locked joint metal strip
- - 1976968

Roofing
- - 2488887


Inventors:
Holmstrom, Henry W.
Isaacson, John A.
Joss, Robert A.
Publication Date:
06/29/1954
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Assignee:
Holmstrom, Henry W.
Isaacson, John A.
Joss, Robert A.
Primary Class:
52/529
Other Classes:
52/518, 52/394
International Classes:
E04D3/362; E04D13/064; E04F13/08; E04D3/36