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发明名称
摘要
申请公布号	JP2533925(Y2)	申请公布日期	1997.04.30
申请号	JP19910031452U	申请日期	1991.05.08
申请人		发明人
分类号	B21D28/36;B21D37/04;B23Q3/155;G06K17/00;(IPC1-7):B21D37/04	主分类号	B21D28/36
代理机构		代理人
主权项
地址

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