Punch and die assembly for making interlocking integral fasteners
United States Patent 2924312
US Patent References:
/0056494.html
- - 0056494
/0977178.html
- - 0977178
Punch and die
- - 2288308
Apparatus for connecting metallic strips
- - 2426670
/0056494.html
- - 0056494
/0977178.html
- - 0977178
Punch and die
- - 2288308
Apparatus for connecting metallic strips
- - 2426670
Inventors:
Williams, Ivan A.
Publication Date:
02/09/1960
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Assignee:
Williams, Ivan A.
Primary Class:
Other Classes:
72/363, 403/384, 29/521, 29/522.100, 29/509, 29/432
International Classes:
B21D39/03