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发明名称
摘要
申请公布号
JP2549345(Y2)
申请公布日期
1997.09.30
申请号
JP19930017038U
申请日期
1993.03.12
申请人
发明人
分类号
B21C47/02;B21C47/24;B65H16/10;(IPC1-7):B21C47/02
主分类号
B21C47/02
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代理人
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