Helmut Prekel

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Lindau, DE

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Patents Grantslast 30 patents

Information Patent Grant
Method of an apparatus for nondestructuve workpiece testing
- Patent number 5,841,138
- Issue date Nov 24, 1998
- Wagner International AG
- Helmut Prekel
- G01 - MEASURING TESTING
Information Patent Grant
Surface photothermic testing device
- Patent number 5,803,606
- Issue date Sep 8, 1998
- Phototherm Dr. Petry GmbH
- Harald Petry
- G01 - MEASURING TESTING
Information Patent Grant
Method and a device for photothermally testing workpieces
- Patent number 5,760,400
- Issue date Jun 2, 1998
- Wagner International AG
- Helmut Prekel
- G01 - MEASURING TESTING