Donald E. Burk

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San Antonio, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Hole enlarging bit for power drills
- Patent number 6,676,343
- Issue date Jan 13, 2004
- Donald E. Burk
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

Information Patent Application
Hole resizing arbor for power drills
- Publication number 20050244238
- Publication date Nov 3, 2005
- Donald E. Burk
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
Hole enlarging bit for power drills
- Publication number 20030063956
- Publication date Apr 3, 2003
- Donald E. Burk
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC