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发明名称
摘要
申请公布号
JP3403762(B2)
申请公布日期
2003.05.06
申请号
JP19930178375
申请日期
1993.07.19
申请人
发明人
分类号
B21C23/14;B21C37/15;B21D3/14;B21D7/025;B21D26/033;B21D26/047;B21D53/86;B21D53/88;(IPC1-7):B21D53/88;B21D26/02
主分类号
B21C23/14
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代理人
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