DEVICE FOR CLEANING OF OIL-GAS PRODUCING WELL,申请号SU19915023309-传众专利搜索

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发明名称	DEVICE FOR CLEANING OF OIL-GAS PRODUCING WELL
摘要
申请公布号	RU2012778(C1)	申请公布日期	1994.05.15
申请号	SU19915023309	申请日期	1991.12.28
申请人	EFIMKIN ALEKSEJ A	发明人	EFIMKIN ALEKSEJ A
分类号	E21B37/00;E21B31/20;(IPC1-7):E21B37/00	主分类号	E21B37/00
代理机构		代理人
主权项
地址

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