Device for indicating contaminations in oil circulation systems,申请号US19400360689-传众专利搜索

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发明名称	Device for indicating contaminations in oil circulation systems
摘要
申请公布号	US2349992(A)	申请公布日期	1944.05.30
申请号	US19400360689	申请日期	1940.10.10
申请人	WALTER SCHRADER	发明人	SCHRADER WALTER
分类号	G01N15/06;G01V3/08	主分类号	G01N15/06
代理机构		代理人
主权项
地址

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