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发明名称
摘要
申请公布号
JPS55106546(U)
申请公布日期
1980.07.25
申请号
JP19790005001U
申请日期
1979.01.22
申请人
发明人
分类号
B21D43/26;B21D43/05;B21D45/04;(IPC1-7):B21D43/28;B21D45/02;B30B15/30
主分类号
B21D43/26
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代理人
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