David Scott Rife

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Greensburg, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Countersink roof bit drill and method for using the same
- Patent number 7,708,087
- Issue date May 4, 2010
- Kennametal, Inc.
- Brandon S. Stables
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
Countersink Roof Bit Drill And Method For Using The Same
- Publication number 20080251296
- Publication date Oct 16, 2008
- Jennmar Corporation
- Brandon S. Stables
- E21 - EARTH DRILLING MINING