Treatment of viscose solutions,申请号US19270160002-传众专利搜索

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发明名称	Treatment of viscose solutions
摘要
申请公布号	US1841420(A)	申请公布日期	1932.01.19
申请号	US19270160002	申请日期	1927.01.08
申请人	THE KOPPERS COMPANY	发明人	JR. FREDERICK W. SPERR,
分类号	D01F2/08	主分类号	D01F2/08
代理机构		代理人
主权项
地址

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