Apparatus for detecting leakage,申请号US19360094538-传众专利搜索

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发明名称	Apparatus for detecting leakage
摘要
申请公布号	US2171113(A)	申请公布日期	1939.08.29
申请号	US19360094538	申请日期	1936.08.06
申请人	NATIONAL CARBON COMPANY, INC.	发明人	HOPKINS HOWE H.
分类号	G01M3/28	主分类号	G01M3/28
代理机构		代理人
主权项
地址

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