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发明名称
摘要
申请公布号
JP3960533(B2)
申请公布日期
2007.08.15
申请号
JP20020222015
申请日期
2002.07.30
申请人
发明人
分类号
B21D1/10;G11B5/84;C22F1/00;C22F1/04;G11B5/73
主分类号
B21D1/10
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代理人
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