Замок для соединения трубчатых бурильных штанг,申请号SU19550451875-传众专利搜索

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发明名称	Замок для соединения трубчатых бурильных штанг
摘要
申请公布号	SU102775(A1)	申请公布日期	1955.11.30
申请号	SU19550451875	申请日期	1955.08.05
申请人	KUDRYASHOV I.N.;KUNDZICH M.M.;MIKHAJLOV M.I.;RUSAKOV V.K.	发明人	KUDRYASHOV I.N.;KUNDZICH M.M.;MIKHAJLOV M.I.;RUSAKOV V.K.
分类号	E21B17/04	主分类号	E21B17/04
代理机构		代理人
主权项
地址

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