Christian Helmut Koenig

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Patents Grantslast 30 patents

Information Patent Grant
Propeller or propeller drive
- Patent number 7,886,544
- Issue date Feb 15, 2011
- Christian Koenig
- B64 - AIRCRAFT AVIATION COSMONAUTICS

Patents Applicationslast 30 patents

Information Patent Application
Propeller or propeller drive
- Publication number 20070056291
- Publication date Mar 15, 2007
- Christian Helmut Koenig
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES