Color improvement of unsized porous paper,申请号US19520276854-传众专利搜索

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发明名称	Color improvement of unsized porous paper
摘要
申请公布号	US2730446(A)	申请公布日期	1956.01.10
申请号	US19520276854	申请日期	1952.03.15
申请人	AMERICAN CYANAMID COMPANY	发明人	HUTCHINS MARSDEN CLAIR
分类号	D21H21/28	主分类号	D21H21/28
代理机构		代理人
主权项
地址

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