WELL UNIT FOR WASH OF SAND-PITCH PLUGS IN WELLS,申请号UA20050012694-传众专利搜索

发明名称	WELL UNIT FOR WASH OF SAND-PITCH PLUGS IN WELLS
摘要	The well unit for wash of sand-pitch plugs in wells has stem and slide with tangent elongated in vertical direction slot cuts and ball supports. The outer surface of the slide is made with destruction teeth.
申请公布号	UA14761(U)	申请公布日期	2006.05.15
申请号	UA20050012694	申请日期	2005.12.28
申请人	PETRYSHAK VASYL STEPANOVYCH;SHYMKO ROMAN YAROSLAVOVYCH;VECHERIK ROMAN LEONIDOVYCH;MARCHUK YAROSLAV SEMENOVYCH;ANDRIISHYN MYKHAILO PETROVYCH;YATSKIV MYKHAILO PETROVYCH;GORDIIENKO OLEKSANDR MYKHAILOVYCH	发明人	PETRYSHAK VASYL STEPANOVYCH;SHYMKO ROMAN YAROSLAVOVYCH;VECHERIK ROMAN LEONIDOVYCH;MARCHUK YAROSLAV SEMENOVYCH;ANDRIISHYN MYKHAILO PETROVYCH;YATSKIV MYKHAILO PETROVYCH;GORDIIENKO OLEKSANDR MYKHAILOVYCH
分类号	E21B21/14	主分类号	E21B21/14
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