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摘要
申请公布号
JPS5311270(B2)
申请公布日期
1978.04.20
申请号
JP19740143088
申请日期
1974.12.14
申请人
发明人
分类号
B21C47/04;B21B41/00;B21C47/10;B65H54/80;B65H75/16
主分类号
B21C47/04
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