FLEXIBLE STRING OF DRILL PIPES,申请号SU19864051314-传众专利搜索

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发明名称	FLEXIBLE STRING OF DRILL PIPES
摘要
申请公布号	SU1460184(A1)	申请公布日期	1989.02.23
申请号	SU19864051314	申请日期	1986.04.07
申请人	SVININA GALINA YA,SU	发明人	SVININA GALINA YA,SU
分类号	E21B17/05;E21B17/20	主分类号	E21B17/05
代理机构		代理人
主权项
地址

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