Assignee
FIRST CORP INT INC
US·1 granted patent·2 pending applications·1 citations·filing 2014–2017
Technology mixE21B3
Top patents by PatentIndex Score
3 records- 0137US9624732B2Hole opener and method for drillingFIRST CORP INT INC·Filed 2014·Granted Apr 18, 2017·1 cites·20 claims
- 0229US2017175451A1Hole opener and method for drillingFIRST CORP INT INC·Filed 2017·Application pending·0 cites
- 0317US2018051520A1Method of forming a hole in a hard ground structureFIRST CORP INT INC·Filed 2017·Application pending·0 cites
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