Передвижная буровая установка,申请号SU19480380443-传众专利搜索

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发明名称	Передвижная буровая установка
摘要
申请公布号	SU74642(A1)	申请公布日期	1948.11.30
申请号	SU19480380443	申请日期	1948.06.19
申请人	ANDREEV M.M.;EGOROV L.N.;TRUNIN N.I.	发明人	ANDREEV M.M.;EGOROV L.N.;TRUNIN N.I.
分类号	E21B7/02	主分类号	E21B7/02
代理机构		代理人
主权项
地址

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