DEVICE FOR PREVENTING SAND-CLOGGING OF WELLS,申请号SU19802901857-传众专利搜索

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发明名称	DEVICE FOR PREVENTING SAND-CLOGGING OF WELLS
摘要
申请公布号	SU883349(A1)	申请公布日期	1981.11.23
申请号	SU19802901857	申请日期	1980.03.28
申请人	N-PROIZV OB PO TERMICHESKIM METODAM DOBYCHI NEFTI	发明人	FELDMAN IGOR M,SU;KOSYUGA DMITRIJ I,SU;KIPNIS SERGEJ G,SU;TSYBULIN MIKHAIL I,SU;MASLOV IGOR I,SU
分类号	E21B43/08;(IPC1-7):E21B43/08	主分类号	E21B43/08
代理机构		代理人
主权项
地址

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