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发明名称
摘要
申请公布号
JP2817620(B2)
申请公布日期
1998.10.30
申请号
JP19940107763
申请日期
1994.04.22
申请人
发明人
分类号
B21C37/08;B21D3/14;B21D39/20;(IPC1-7):B21D39/20
主分类号
B21C37/08
代理机构
代理人
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