Wilhelm Schelkmann

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Witten, DE

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Patents Grantslast 30 patents

Information Patent Grant
Method for repairing and retreading vehicle tires
- Patent number 4,234,369
- Issue date Nov 18, 1980
- Vakuum Vulk Holdings Limited
- Wilhelm Schelkmann
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Method for the renewal of a worn pneumatic or solid rubbery tire by...
- Patent number 4,151,027
- Issue date Apr 24, 1979
- Vakuum Vulk Holdings Limited
- Wilhelm Schelkmann
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Method and apparatus for the renewal of the tread of a worn pneumat...
- Patent number 4,147,642
- Issue date Apr 3, 1979
- Vakuum Vulk Holding Limited
- Wilhelm Schelkmann
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL