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发明名称
摘要
申请公布号	JPH0259811(U)	申请公布日期	1990.05.01
申请号	JP19880137494U	申请日期	1988.10.21
申请人		发明人
分类号	B21C25/02;B21C26/00;(IPC1-7):B21C26/00	主分类号	B21C25/02
代理机构		代理人
主权项
地址

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