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发明名称
摘要
申请公布号
JPS59135843(U)
申请公布日期
1984.09.11
申请号
JP19830030941U
申请日期
1983.03.02
申请人
发明人
分类号
B21D45/04;B21J13/14;B30B15/32;(IPC1-7):B21J13/14
主分类号
B21D45/04
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代理人
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