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发明名称
摘要
申请公布号
JPS53162983(U)
申请公布日期
1978.12.20
申请号
JP19770068480U
申请日期
1977.05.30
申请人
发明人
分类号
B21D24/04;B21D24/08;B21D24/10;B30B1/26;B30B15/06;(IPC1-7):B30B1/26
主分类号
B21D24/04
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代理人
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