Cutting – Tool or tool with support – Cutting couple type
Patent
1996-12-19
1998-03-24
Rachuba, Maurina T.
Cutting
Tool or tool with support
Cutting couple type
83689, B21D 2228
Patent
active
057300380
ABSTRACT:
A punch for punching holes in a stack of sheets of paper having a V-shaped groove with a height based on the thickness of the stack and the forces necessary to drive the punch pin of the punch through the stack of paper.
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Ostergaard, D.E., Advanced Diemaking, McGraw-Hill Book Company, pp. 72-73, publication date unknown.
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Evans Alfred J.
Feng David Q.
Kandasamy Balaji
Acco USA, Inc.
Rachuba Maurina T.
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