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发明名称
摘要
申请公布号
JPS59148136(U)
申请公布日期
1984.10.03
申请号
JP19830040472U
申请日期
1983.03.18
申请人
发明人
分类号
B21C37/24;B21C37/26;B21D39/20;B21D53/06;B21D53/08;(IPC1-7):B21D39/20
主分类号
B21C37/24
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代理人
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