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Christopher David Down
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Suffolk, GB
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last 30 patents
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Patent Grant
Downhole drilling tool
Patent number
7,377,337
Issue date
May 27, 2008
Pilot Drilling Control Limited
George Swietlik
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Patents Applications
last 30 patents
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Patent Application
Downhole drilling tool
Publication number
20090020337
Publication date
Jan 22, 2009
George Swietlik
E21 - EARTH DRILLING MINING
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Patent Application
Downhole drilling tool
Publication number
20080179100
Publication date
Jul 31, 2008
Pilot Drilling Control Limited
George Swietlik
E21 - EARTH DRILLING MINING
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Patent Application
Downhole drilling tool
Publication number
20060151216
Publication date
Jul 13, 2006
George Swietlik
E21 - EARTH DRILLING MINING