Hollow cylindrical billet for extrusion - pressing,申请号FR19690037180-传众专利搜索

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发明名称	Hollow cylindrical billet for extrusion - pressing
摘要
申请公布号	FR2023033(A1)	申请公布日期	1970.08.07
申请号	FR19690037180	申请日期	1969.10.29
申请人	KOBE STEEL LTD	发明人
分类号	B21J5/10;B21J9/04;(IPC1-7):21J9/00;21C23/00	主分类号	B21J5/10
代理机构		代理人
主权项
地址

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