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Kyle Jones
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Thompsonville, MI, US
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last 30 patents
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Patent Grant
Sonic drill head
Patent number
8,851,203
Issue date
Oct 7, 2014
Layne Christensen Company
Brian Smith
E21 - EARTH DRILLING MINING
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last 30 patents
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Patent Application
SONIC DRILL HEAD
Publication number
20120255782
Publication date
Oct 11, 2012
Brian SMITH
E21 - EARTH DRILLING MINING