Process of making paper pulp,申请号US19250031785-传众专利搜索

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发明名称	Process of making paper pulp
摘要
申请公布号	US1872996(A)	申请公布日期	1932.08.23
申请号	US19250031785	申请日期	1925.05.21
申请人	MASONITE CORPORATION	发明人	MASON WILLIAM H.
分类号	D21C1/00	主分类号	D21C1/00
代理机构		代理人
主权项
地址

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