David Risch

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Pudong District Shanghai, CN

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Patents Grantslast 30 patents

Information Patent Grant
Strut for coupling linear drive to elevator car or counterweight
- Patent number 6,464,042
- Issue date Oct 15, 2002
- Inventio AG
- David Risch
- B66 - HOISTING LIFTING HAULING

Patents Applicationslast 30 patents

Information Patent Application
Direct drive for an elevator car
- Publication number 20010015306
- Publication date Aug 23, 2001
- David Risch
- B66 - HOISTING LIFTING HAULING