Process of treating ground wood,申请号US19390268759-传众专利搜索

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发明名称	Process of treating ground wood
摘要
申请公布号	US2187016(A)	申请公布日期	1940.01.16
申请号	US19390268759	申请日期	1939.04.19
申请人	PAPER PATENTS COMPANY	发明人	CRAIG KENNETH A.
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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