发明名称 METAL CATCHER
摘要 A metal catcher has cavities formed between the cylindrical surface and the case. It is made of parts as pipe sectors surrounding the surface of its installation without gap and as sectors of a cup with bottom directed to the drill instrument; at that the side surface of the cup forms cavities with the surface of installation.
申请公布号 UA8879(U) 申请公布日期 2005.08.15
申请号 UA20050002553 申请日期 2005.03.21
申请人 FRIZ IVAN MYKHAILOVYCH;MOISEIENKO VALERII MYKHAILOVYCH;MOVCHAN VOLODYMYR MATVIIOVYCH;IVASYSHYN MYRON VASYLIOVYCH 发明人 FRIZ IVAN MYKHAILOVYCH;MOISEIENKO VALERII MYKHAILOVYCH;MOVCHAN VOLODYMYR MATVIIOVYCH;IVASYSHYN MYRON VASYLIOVYCH
分类号 E21B31/03;(IPC1-7):E21B31/03 主分类号 E21B31/03
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