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发明名称
摘要
申请公布号	FR2319443(B1)	申请公布日期	1982.04.30
申请号	FR19760021641	申请日期	1976.07.15
申请人	JONES ET LAUGHLIN STEEL CORP	发明人
分类号	B22D7/12;B22D11/10;B22D11/106;(IPC1-7):B22D11/00	主分类号	B22D7/12
代理机构		代理人
主权项
地址

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