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发明名称
摘要
申请公布号
JPS5287638(U)
申请公布日期
1977.06.30
申请号
JP19750175943U
申请日期
1975.12.25
申请人
发明人
分类号
B21C47/14;B21C47/28;B65H54/76;B65H75/02;(IPC1-7):B21C47/28
主分类号
B21C47/14
代理机构
代理人
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