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发明名称
摘要
申请公布号
JPS5326576(B2)
申请公布日期
1978.08.03
申请号
JP19740089970
申请日期
1974.08.05
申请人
发明人
分类号
B21C47/00;B21C47/02;B65H23/198;B65H77/00;G05D17/00;H02P29/00
主分类号
B21C47/00
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