Objet tubulaire extrudé,申请号FRD922026-传众专利搜索

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发明名称	Objet tubulaire extrudé
摘要
申请公布号	FR922026(A)	申请公布日期	1947.05.27
申请号	FRD922026	申请日期	1946.02.12
申请人	N. V. PHILIPS' GLOEILAMPENFABRIEKEN	发明人
分类号	B21C23/10	主分类号	B21C23/10
代理机构		代理人
主权项
地址

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