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发明名称
摘要
申请公布号	JPS646980(Y2)	申请公布日期	1989.02.23
申请号	JP19830030859U	申请日期	1983.03.03
申请人		发明人
分类号	B21C1/14;B21C37/00;B21C47/02;B21C47/18;B21C49/00;B21D49/00;B65H59/00;(IPC1-7):B21C49/00	主分类号	B21C1/14
代理机构		代理人
主权项
地址

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