Exterior anchoring apparatus for surface sheet
United States Patent 3309822
US Patent References:
/0352424.html
- - 0352424

/0670753.html
- - 0670753

/1085158.html
- - 1085158

/1273399.html
- - 1273399

Shingle
- - 1574099


Inventors:
Dunkin, William H.
Publication Date:
03/21/1967
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Assignee:
Dunkin, William H.
Primary Class:
52/23
Other Classes:
52/520, 52/547, 52/549
International Classes:
E04D3/36
US Patent References:
2874651Portable protecting cover for grain in open field storage
3088558Prefabricated building assembly
Foreign References:
FR1327287A
GB189410274A
GB160906A
IT545965B
IT614727B