Robert G. Dretzka

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South Milwaukee, WI, US

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Patents Grantslast 30 patents

Information Patent Grant
Lower gearcase shift mechanism for marine propulsion device
- Patent number 4,820,210
- Issue date Apr 11, 1989
- Outboard Marine Corporation
- Robert G. Dretzka
- B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
Information Patent Grant
Marine propulsion unit having ignition interruption means to assist...
- Patent number 4,403,970
- Issue date Sep 13, 1983
- Outboard Marine Corporation
- Robert G. Dretzka
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Marine propulsion device including ignition interruption means to a...
- Patent number 4,262,622
- Issue date Apr 21, 1981
- Outboard Marine Corporation
- Robert G. Dretzka
- B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT