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Patente

Referenziert von

Zitiert von PatentEingetragenAusgestelltUrsprünglich Bevollmächtigter Titel
US405778019. März 19768. Nov. 1977The United States of America as represented by the United States Energy Research and Development AdministrationMethod for describing fractures in subterranean earth formations
US422647519. Apr. 19787. Okt. 1980Underground mineral extraction
US447694510. Febr. 198316. Okt. 1984Atlantic Richfield CompanyDrainhold drilling
US485044010. Aug. 198725. Juli 1989Method and device for making a hole in the ground
US502621413. Juli 198925. Juni 1991Apparatus for placing cementitious materials in earth excavations
US52560055. Juni 199226. Okt. 1993Method and apparatus for placing cementitious materials in earth excavations
US529195615. Apr. 19928. März 1994Union Oil Company of CaliforniaCoiled tubing drilling apparatus and method
US536007529. Nov. 19931. Nov. 1994Kidco Resources Ltd.Steering drill bit while drilling a bore hole
US54858893. März 199523. Jan. 1996Sidekick Tools Inc.Steering drill bit while drilling a bore hole
US548899928. Febr. 19956. Febr. 1996Drill bit for geological exploration
US554029527. März 199530. Juli 1996Vibrator for drill stems
US557074812. Okt. 19955. Nov. 1996Drill bit for geological exploration