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发明名称
摘要
申请公布号
JP3761820(B2)
申请公布日期
2006.03.29
申请号
JP20020043277
申请日期
2002.02.20
申请人
发明人
分类号
B21D26/02;B21D26/033;B21D26/041;B21D53/88;C21D1/673;C21D7/12;C21D9/08
主分类号
B21D26/02
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代理人
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