Bobine de film, en résine artificielle,申请号FRD850457-传众专利搜索

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发明名称	Bobine de film, en résine artificielle
摘要
申请公布号	FR850457(A)	申请公布日期	1939.12.18
申请号	FRD850457	申请日期	1939.02.17
申请人	I. G. FARBENINDUSTRIE AKTIENGESELLSCHAFT	发明人
分类号	G03B21/32	主分类号	G03B21/32
代理机构		代理人
主权项
地址

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