Manufacture of artificial filaments,申请号US19310562426-传众专利搜索

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发明名称	Manufacture of artificial filaments
摘要
申请公布号	US1990897(A)	申请公布日期	1935.02.12
申请号	US19310562426	申请日期	1931.09.11
申请人	NORTH AMERICAN RAYON CORPORATION	发明人	ETZKORN RUDOLF
分类号	D01D5/06	主分类号	D01D5/06
代理机构		代理人
主权项
地址

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