HYDRAULIC AND MECHANICAL BOTTOM-HOLE JUNK BASKET,申请号SU19884434273-传众专利搜索

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发明名称	HYDRAULIC AND MECHANICAL BOTTOM-HOLE JUNK BASKET
摘要
申请公布号	SU1694851(A1)	申请公布日期	1991.11.30
申请号	SU19884434273	申请日期	1988.05.30
申请人	UKHTINSKOE PROIZV GEOLOGICHESKOE OB PO RAZVEDKE NEFTI GAZA	发明人	EFIMKIN ALEKSEJ A,SU
分类号	E21B31/00	主分类号	E21B31/00
代理机构		代理人
主权项
地址

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