Klaus Barthelt

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Grafschaft, DE

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Patents Grantslast 30 patents

Information Patent Grant
Arrangement for the contactless transmission of optical data
- Patent number 6,480,348
- Issue date Nov 12, 2002
- Stemmann-Technik GmbH
- Klaus Barthelt
- G08 - SIGNALLING
Information Patent Grant
Signal conductor
- Patent number 6,162,993
- Issue date Dec 19, 2000
- Stemmann-Technik GmbH
- Klaus Barthelt
- H01 - BASIC ELECTRIC ELEMENTS