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发明名称
摘要
申请公布号
JPS636119(Y2)
申请公布日期
1988.02.20
申请号
JP19800027481U
申请日期
1980.03.03
申请人
发明人
分类号
B21D43/28;B21D43/22;B65H31/20;B65H31/24;B65H31/30;(IPC1-7):B65H31/30
主分类号
B21D43/28
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代理人
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