Procédé de fabrication de tubes à une où plusieurs cloisons,申请号FRD766434-传众专利搜索

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发明名称	Procédé de fabrication de tubes à une où plusieurs cloisons
摘要
申请公布号	FR766434(A)	申请公布日期	1934.06.28
申请号	FRD766434	申请日期	1934.01.02
申请人	N. V. PHILIPS' GLOEILAMPENFABRIEKEN	发明人
分类号	C03B19/00;C03B23/047;C03B23/20	主分类号	C03B19/00
代理机构		代理人
主权项
地址

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