Refining of rosin esters,申请号US19310572731-传众专利搜索

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发明名称	Refining of rosin esters
摘要
申请公布号	US2103445(A)	申请公布日期	1937.12.28
申请号	US19310572731	申请日期	1931.11.02
申请人	HERCULES POWDER COMPANY	发明人	BORGLIN JOSEPH N.
分类号	C09F1/00	主分类号	C09F1/00
代理机构		代理人
主权项
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