PACKING FLUID FOR BORE-HOLES OF HIGH COMPOUND PRESSURE GRADIENT,申请号PL19870265005-传众专利搜索

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发明名称	PACKING FLUID FOR BORE-HOLES OF HIGH COMPOUND PRESSURE GRADIENT
摘要
申请公布号	PL155165(B1)	申请公布日期	1991.10.31
申请号	PL19870265005	申请日期	1987.04.03
申请人		发明人
分类号	E21B;E21B33/00;(IPC1-7):E21B33/00;C09K7/00	主分类号	E21B
代理机构		代理人
主权项
地址

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