Danielle V. Roberts

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Spring, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Rotary drill bit shank, rotary drill bits so equipped, and methods...
- Patent number 7,472,764
- Issue date Jan 6, 2009
- Baker Hughes Incorporated
- Anton F. Zahradnik
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

Information Patent Application
Rotary drill bit shank, rotary drill bits so equipped, and methods...
- Publication number 20060213693
- Publication date Sep 28, 2006
- Anton F. Zahradnik
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR