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发明名称
摘要
申请公布号
JPS5930328(U)
申请公布日期
1984.02.25
申请号
JP19820123538U
申请日期
1982.08.13
申请人
发明人
分类号
B21D28/34;B21D37/14;B21D45/08;(IPC1-7):B21D28/34
主分类号
B21D28/34
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代理人
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