Manufacture of pour point depressors,申请号US19350015568-传众专利搜索

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发明名称	Manufacture of pour point depressors
摘要
申请公布号	US2030307(A)	申请公布日期	1936.02.11
申请号	US19350015568	申请日期	1935.04.10
申请人	STANDARD OIL COMPANY	发明人	MACLAREN FREDERICK H.
分类号		主分类号
代理机构		代理人
主权项
地址

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