DEVICE FOR MEASURING FLUID LEVEL IN WELL,申请号SU19884431551-传众专利搜索

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发明名称	DEVICE FOR MEASURING FLUID LEVEL IN WELL
摘要
申请公布号	SU1557316(A1)	申请公布日期	1990.04.15
申请号	SU19884431551	申请日期	1988.04.11
申请人	FEDOROV VIKTOR F,SU	发明人	FEDOROV VIKTOR F,SU
分类号	E21B47/047;G01F23/04	主分类号	E21B47/047
代理机构		代理人
主权项
地址

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