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发明名称
摘要
申请公布号
JPS546756(Y2)
申请公布日期
1979.03.30
申请号
JP19740147146U
申请日期
1974.12.04
申请人
发明人
分类号
B21C47/18;B21C47/26;B21C47/34;B65H51/32;B65H57/14;B65H57/22;(IPC1-7):B21C47/26
主分类号
B21C47/18
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