Прибор для непрерывного измерения диаметра скважин по глубине,申请号SU19460349646-传众专利搜索

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发明名称	Прибор для непрерывного измерения диаметра скважин по глубине
摘要
申请公布号	SU74512(A1)	申请公布日期	1948.11.30
申请号	SU19460349646	申请日期	1946.11.21
申请人	VANICHKIN A.A.;STRATEV B.D.	发明人	VANICHKIN A.A.;STRATEV B.D.
分类号	E21B47/08;G01B7/13	主分类号	E21B47/08
代理机构		代理人
主权项
地址

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