Multistage process of pulping raw cellulosic material,申请号US19310516843-传众专利搜索

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发明名称	Multistage process of pulping raw cellulosic material
摘要
申请公布号	US1880048(A)	申请公布日期	1932.09.27
申请号	US19310516843	申请日期	1931.02.18
申请人	BROWN COMPANY	发明人	RICHTER GEORGE A.
分类号	D21C3/26	主分类号	D21C3/26
代理机构		代理人
主权项
地址

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