Method of bleaching pulp,申请号US19310538650-传众专利搜索

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发明名称	Method of bleaching pulp
摘要
申请公布号	US2031485(A)	申请公布日期	1936.02.18
申请号	US19310538650	申请日期	1931.05.20
申请人	PAPER PATENTS COMPANY	发明人	JOHN HANS;FEBVRE CLARENCE C. LE;BOIS HORACE DU
分类号	D21C9/10	主分类号	D21C9/10
代理机构		代理人
主权项
地址

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