Gregory J. O'Brien

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Granville, NY, US

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Patents Grantslast 30 patents

Information Patent Grant
Portable drill bit sharpener
- Patent number 8,690,643
- Issue date Apr 8, 2014
- Western New England University
- Glenn E. Vallee
- B24 - GRINDING POLISHING

Patents Applicationslast 30 patents

Information Patent Application
PORTABLE DRILL BIT SHARPENER
- Publication number 20120009853
- Publication date Jan 12, 2012
- WESTERN NEW ENGLAND UNIVERSITY
- Glenn E. Vallee
- B24 - GRINDING POLISHING