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发明名称
摘要
申请公布号
JPS5930310(U)
申请公布日期
1984.02.25
申请号
JP19820126259U
申请日期
1982.08.20
申请人
发明人
分类号
B21B39/14;B21C51/00;(IPC1-7):B21B39/14
主分类号
B21B39/14
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代理人
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