Anthony John Spencer SPEARING

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Aurora, OH, US

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Patents Grantslast 30 patents

Information Patent Grant
Free standing support
- Patent number 8,092,121
- Issue date Jan 10, 2012
- Anthony John Spencer Spearing
- E21 - EARTH DRILLING MINING
Information Patent Grant
Elongate element tensioning member
- Patent number 7,927,042
- Issue date Apr 19, 2011
- Atlas Copco MAI GmbH
- Anthony John Spencer Spearing
- E21 - EARTH DRILLING MINING
Information Patent Grant
Free standing support
- Patent number 7,914,238
- Issue date Mar 29, 2011
- Anthony John Spencer Spearing
- E21 - EARTH DRILLING MINING
Information Patent Grant
Elongate element tensioning member
- Patent number 7,147,404
- Issue date Dec 12, 2006
- Atlas Copco MAI GmbH
- Anthony John Spencer Spearing
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
FREE STANDING SUPPORT
- Publication number 20110114813
- Publication date May 19, 2011
- Anthony John Spencer SPEARING
- E21 - EARTH DRILLING MINING