Устройство для измерения диаметра буровых скважин,申请号SU19470372800-传众专利搜索

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发明名称	Устройство для измерения диаметра буровых скважин
摘要
申请公布号	SU77003(A1)	申请公布日期	1948.11.30
申请号	SU19470372800	申请日期	1947.12.29
申请人	DIDURA I.G.;NECHAJ A.M.;STROTSKIJ V.N.;STROTSKIJ G.N.	发明人	DIDURA I.G.;NECHAJ A.M.;STROTSKIJ V.N.;STROTSKIJ G.N.
分类号	E21B47/08	主分类号	E21B47/08
代理机构		代理人
主权项
地址

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