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发明名称
摘要
申请公布号	JPH0553727(U)	申请公布日期	1993.07.20
申请号	JP19910113062U	申请日期	1991.12.28
申请人		发明人
分类号	B21D5/04;B21D45/04;(IPC1-7):B21D5/04	主分类号	B21D5/04
代理机构		代理人
主权项
地址

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