Production of paper pulp,申请号US19320641415-传众专利搜索

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发明名称	Production of paper pulp
摘要
申请公布号	US1969421(A)	申请公布日期	1934.08.07
申请号	US19320641415	申请日期	1932.11.05
申请人	PAULSON PETER A	发明人	PAULSON PETER A.
分类号	D21C7/00	主分类号	D21C7/00
代理机构		代理人
主权项
地址

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