US Patent 7377337 Downhole drilling tool
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Patent abstract
A downhole drilling tool 136 comprises a drillstring 138, a drilling head 140, and a freewheel 144 for transferring drive from the drillstring to the drilling head. The freewheel 144 is positioned between the drillstring 138 and the drilling head 140.
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US Patent 07377337 Downhole drilling tool US Patent 7377337 Downhole drilling tool
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Patent Number
0737733700
Patent Number
737733700
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Patent Jurisdiction
Patent Number
073773370
Date of Patent
May 27, 2008
0Patent Application Number
110335760
Date Filed
January 12, 2005
0Official Website
Patent Primary Examiner
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Infobox
Is a
Patent Jurisdiction
Patent Number
073773370
Date of Patent
May 27, 2008
0Patent Application Number
110335760
Date Filed
January 12, 2005
0Official Website
Patent Primary Examiner
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US Patent 07377337 Downhole drilling tool
Infobox
Is a
Patent jurisdiction
Patent number
07377337
Date of patent
May 27, 2008
Patent application number
11033576
Date Filed
January 12, 2005
Patent primary examiner
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