Raymond Z. Blinstrubas

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Darien, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for stamping a metal sheet with an apertured d...
- Patent number 6,233,989
- Issue date May 22, 2001
- Changing Paradigms, LLC
- Raymond Z. Blinstrubas
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...