Refining hydrocarbon resins,申请号US19500144612-传众专利搜索

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发明名称	Refining hydrocarbon resins
摘要
申请公布号	US2656303(A)	申请公布日期	1953.10.20
申请号	US19500144612	申请日期	1950.02.17
申请人	PAN AMERICAN REFINING CORPORATION	发明人	LEE ROBERT J.;MAY PAUL D.
分类号	C08F240/00	主分类号	C08F240/00
代理机构		代理人
主权项
地址

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