GAUGE FOR DRILL PIPES,申请号SU19731972587-传众专利搜索

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发明名称	GAUGE FOR DRILL PIPES
摘要
申请公布号	SU1229310(A1)	申请公布日期	1986.05.07
申请号	SU19731972587	申请日期	1973.11.30
申请人	KURTOV VENIAMIN D,SU	发明人	KURTOV VENIAMIN D,SU
分类号	E21B29/00;(IPC1-7):E21B29/00	主分类号	E21B29/00
代理机构		代理人
主权项
地址

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