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发明名称
摘要
申请公布号
JPS5242924(Y2)
申请公布日期
1977.09.29
申请号
JP19730083949U
申请日期
1973.07.17
申请人
发明人
分类号
B21C47/16;B21B37/00;B21C47/00;B21C47/28;B21C47/34;B21D43/02;B65H16/10;B65H23/00;B65H23/185;B65H75/18;G05D3/12;(IPC1-7):B21C47/28
主分类号
B21C47/16
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代理人
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