Title:
Self sustaining paper punch frame assembly
United States Patent 3087367
Inventors:
Semler, Loren H.
Publication Date:
04/30/1963
Export Citation:
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Assignee:
METAL SPECIALTIES MFG CO
Primary Class:
83/588
Other Classes:
30/358, 83/146, 83/635, 83/698.91
International Classes:
B26F1/36; B26F1/32
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US Patent References:
2883228Closure fastener
2825407Gang punch
2749816Paper fastening device
2726721Punch head slidably mounted on a frame
2671951Transformer core and method of making same
2368790Punch
1783063Magnetic core
0562981N/A
Foreign References:
DE198071C