METHOD OF CHECKING CONDITION OF CASING,申请号SU19884446882-传众专利搜索

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发明名称	METHOD OF CHECKING CONDITION OF CASING
摘要
申请公布号	SU1559131(A1)	申请公布日期	1990.04.23
申请号	SU19884446882	申请日期	1988.06.22
申请人	VNI PK I GEOFIZ	发明人	NECHAEV BORIS L,SU;VALYAEV VLADISLAV A,SU
分类号	E21B47/00;E21B47/007	主分类号	E21B47/00
代理机构		代理人
主权项
地址

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