Bernd-Joachim Kempa

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Berlin, DE

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Patents Grantslast 30 patents

Information Patent Grant
Point switch
- Patent number 4,210,300
- Issue date Jul 1, 1980
- Elektro-Thermit GmbH
- Bernd-Joachim Kempa
- B61 - RAILWAYS
Information Patent Grant
Method for moving a railway switch and equipment for implementing t...
- Patent number 4,174,820
- Issue date Nov 20, 1979
- Elektro-Thermit GmbH
- Bernd-Joachim Kempa
- B61 - RAILWAYS