Process of producing oil films,申请号US19440546219-传众专利搜索

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发明名称	Process of producing oil films
摘要
申请公布号	US2496362(A)	申请公布日期	1950.02.07
申请号	US19440546219	申请日期	1944.07.22
申请人	VALLERIE JOHN E	发明人	VALLERIE JOHN E.
分类号	F16N7/32	主分类号	F16N7/32
代理机构		代理人
主权项
地址

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