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发明名称
摘要
申请公布号	JP3910329(B2)	申请公布日期	2007.04.25
申请号	JP20000029572	申请日期	2000.02.07
申请人		发明人
分类号	B21D22/26;B21K1/14;B21D37/08;B21J13/02	主分类号	B21D22/26
代理机构		代理人
主权项
地址

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