Donald John Duffek

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Hartford, WI, US

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Patents Grantslast 30 patents

Information Patent Grant
Trigger for a power tool
- Patent number D535862
- Issue date Jan 30, 2007
- Milwaukee Electric Tool Corporation
- Donald John Duffek
- D08 - Tools and hardware
Information Patent Grant
Power tool trigger
- Patent number 7,015,409
- Issue date Mar 21, 2006
- Milwaukee Electric Tool Corporation
- Donald John Duffek
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
Power tool trigger
- Publication number 20040149553
- Publication date Aug 5, 2004
- Donald John Duffek
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS