John W. Kosareff

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Los Angeles, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus and method for making perforated tube
- Patent number 4,142,663
- Issue date Mar 6, 1979
- Kaiser Steel Corporation
- George A. Blatnik
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...