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Joseph H. Cassidy
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Edmonton, CA
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last 30 patents
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Patent Grant
Apparatus for orienting a mule shoe to enter a previously-installed...
Patent number
7,513,302
Issue date
Apr 7, 2009
Schlumberger Technology Corporation
Joseph H. Cassidy
E21 - EARTH DRILLING MINING
Patents Applications
last 30 patents
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Patent Application
Method of using radial thrust elements to re-enter a previously-ins...
Publication number
20080156495
Publication date
Jul 3, 2008
SCHLUMBERGER TECHNOLOGY CORPORATION
Vance Nixon
E21 - EARTH DRILLING MINING
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Patent Application
Method of using an orientation mule shoe to enter a previously-inst...
Publication number
20080156479
Publication date
Jul 3, 2008
SCHLUMBERGER TECHNOLOGY CORPORATION
Joseph H. Cassidy
E21 - EARTH DRILLING MINING