Janice David

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Plymouth, MI, US

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Patents Grantslast 30 patents

Information Patent Grant
Earth bit with hub and thrust units
- Patent number 7,798,254
- Issue date Sep 21, 2010
- Atlas Copco Secoroc LLC
- Gregory W. Peterson
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

Information Patent Application
EARTH BIT WITH HUB AND THRUST UNITS
- Publication number 20090173546
- Publication date Jul 9, 2009
- ATLAS COPCO SECOROC LLC
- Gregory Wayne Peterson
- E21 - EARTH DRILLING MINING