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发明名称
摘要
申请公布号
JP3258557(B2)
申请公布日期
2002.02.18
申请号
JP19960099757
申请日期
1996.04.22
申请人
发明人
分类号
B21C47/02;B21C47/30;(IPC1-7):B21C47/02
主分类号
B21C47/02
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代理人
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