Michael Frondorf

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Eitorf, DE

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Patents Grantslast 30 patents

Information Patent Grant
Drive for mixing drum with elastic element arranged between bearing...
- Patent number 7,878,699
- Issue date Feb 1, 2011
- ZF Friedrichshafen AG
- Klaus Schiffner
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Grant
Gearbox for concrete mixer
- Patent number 7,331,701
- Issue date Feb 19, 2008
- ZF Friedrichshafen AG
- Eduard Heilig
- B28 - WORKING CEMENT, CLAY, OR STONE

Patents Applicationslast 30 patents

Information Patent Application
Drive for a mixing drum
- Publication number 20090034363
- Publication date Feb 5, 2009
- ZF Friedrichshafen AG
- Michael Frondorf
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Application
Gearbox for concrete mixer
- Publication number 20060176133
- Publication date Aug 10, 2006
- Eduard Heilig
- B28 - WORKING CEMENT, CLAY, OR STONE