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发明名称
摘要
申请公布号	JP2596486(B2)	申请公布日期	1997.04.02
申请号	JP19910254756	申请日期	1991.09.05
申请人		发明人
分类号	B21B28/04;B24B5/37;(IPC1-7):B21B28/04	主分类号	B21B28/04
代理机构		代理人
主权项
地址

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