Прибор для определения уровня жидкости в скважине,申请号SU19610743679-传众专利搜索

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发明名称	Прибор для определения уровня жидкости в скважине
摘要
申请公布号	SU146264(A1)	申请公布日期	1961.11.30
申请号	SU19610743679	申请日期	1961.09.04
申请人		发明人	FAKREEV I.A.
分类号	G01F23/58;E21B47/04	主分类号	G01F23/58
代理机构		代理人
主权项
地址

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