Robert A. Shaffer

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Comstock Park, MI, US

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Patents Grantslast 30 patents

Information Patent Grant
Extended jacket end, double expansion hydroforming
- Patent number 5,836,065
- Issue date Nov 17, 1998
- Benteler Automotive Corporation
- James R. Dehlinger
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Extended jacket end, double expansion hydroforming
- Patent number 5,673,470
- Issue date Oct 7, 1997
- Benteler Automotive Corporation
- James R. Dehlinger
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...