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Richard Pope
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Kahibah, AU
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last 30 patents
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Patent Grant
Wedge barrel for a twin cable mine roof bolt
Patent number
7,066,688
Issue date
Jun 27, 2006
Dywidag-Systems International USA
Alexander I. Wallstein
E21 - EARTH DRILLING MINING
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last 30 patents
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Patent Application
WEDGE BARREL FOR A TWIN CABLE MINE ROOF BOLT
Publication number
20060083593
Publication date
Apr 20, 2006
DYWIDAG-SYSTEMS INTERNATIONAL USA
Alexander I. Wallstein
E21 - EARTH DRILLING MINING