Robert J. Griffis

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San Pablo, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Sheet metal pry hooks
- Patent number 7,690,239
- Issue date Apr 6, 2010
- Robert J. Griffis
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...

Patents Applicationslast 30 patents

Information Patent Application
Sheet metal pry hooks
- Publication number 20090173651
- Publication date Jul 9, 2009
- Robert J. Griffis
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...