Assignee

SUHM WERNER

DE·1 granted patent·1 citations·filing 2009–2009

Technology mixE21B1 E21D1 F24T1 Y02E1

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0154US8662203B2Method and device for creating a deep boreholeSUHM WERNER·Filed 2009·Granted Mar 4, 2014·1 cites·11 claims

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