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发明名称
摘要
申请公布号	JPS646983(Y2)	申请公布日期	1989.02.23
申请号	JP19820183591U	申请日期	1982.12.06
申请人		发明人
分类号	B21D5/02;B21D5/01;B21D43/00;B30B15/30;(IPC1-7):B21D5/01	主分类号	B21D5/02
代理机构		代理人
主权项
地址

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