Joseph C. Boggs

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Bristol, VA, US

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Patents Grantslast 30 patents

Information Patent Grant
Coupler and roof drill bit assembly using such coupler
- Patent number 7,207,400
- Issue date Apr 24, 2007
- Kennametal Inc.
- Douglas E. Bise
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC

Patents Applicationslast 30 patents

Information Patent Application
Coupler and roof drill bit assembly using such coupler
- Publication number 20050224259
- Publication date Oct 13, 2005
- Douglas E. Bise
- E21 - EARTH DRILLING MINING