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发明名称
摘要
申请公布号	JPS5426349(Y2)	申请公布日期	1979.08.31
申请号	JP19750006654U	申请日期	1975.01.14
申请人		发明人
分类号	B21C23/08;B21C23/00;B21C23/20;B21C25/00;B21C25/02;(IPC1-7):B21C25/00	主分类号	B21C23/08
代理机构		代理人
主权项
地址

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