Paper and paper making,申请号US19370158914-传众专利搜索

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发明名称	Paper and paper making
摘要
申请公布号	US2171986(A)	申请公布日期	1939.09.05
申请号	US19370158914	申请日期	1937.08.13
申请人	PAUL POETSCHKE	发明人	POETSCHKE PAUL
分类号		主分类号
代理机构		代理人
主权项
地址

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