Hans W. Obrig

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Essen, DE

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Patents Grantslast 30 patents

Information Patent Grant
Machine tool for broaching crankshaft connecting rod bearings
- Patent number 4,895,057
- Issue date Jan 23, 1990
- Wilhelm Hegenscheidt Gesellschaft mbH
- Garri Berstein
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Method and apparatus for determining the diameter of rail vehicle w...
- Patent number 4,866,642
- Issue date Sep 12, 1989
- Wilhelm Hegenscheidt Gesellschaft GmbH
- Hans W. Obrig
- G01 - MEASURING TESTING
Information Patent Grant
Turn broaching tool
- Patent number 4,861,204
- Issue date Aug 29, 1989
- Wilhelm Hegenscheidt Gesellschaft mbH
- Garri Berstein
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Method and apparatus for performing a rotary broaching operation pa...
- Patent number 4,799,839
- Issue date Jan 24, 1989
- Wilhelm Hegenscheidt GmbH
- Garri Berstein
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR