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Alex Nieczyporowicz
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Torrance, CA, US
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last 30 patents
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Patent Grant
Apparatus and method for forming external raised beads on hollow tu...
Patent number
5,186,033
Issue date
Feb 16, 1993
Earl's Supply Co.
Alex Nieczyporowicz
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...