Title:
STUD-BACKED FASTENERS
United States Patent 3471903

Inventors:
Northrup, Walter E.
Spatafore, Robert M.
Publication Date:
10/14/1969
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Assignee:
MINNESOTA MINING & MFG
Primary Class:
24/306
Other Classes:
29/453
International Classes:
A44B18/00; B29C67/00; A44B21/00
US Patent References:
3266113Interreacting articles
Foreign References:
FR1216512A




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