James A. O'Donnell

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Spartanburg, SC, US

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus for sharpening a circular blade
- Patent number 7,008,307
- Issue date Mar 7, 2006
- Wolff Industries
- David H. Wolff
- B24 - GRINDING POLISHING

Patents Applicationslast 30 patents

Information Patent Application
Apparatus for sharpening a circular blade
- Publication number 20050048881
- Publication date Mar 3, 2005
- David H. Wolff
- B24 - GRINDING POLISHING