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发明名称
摘要
申请公布号
JPS5313337(B2)
申请公布日期
1978.05.09
申请号
JP19740059730
申请日期
1974.05.29
申请人
发明人
分类号
B21B13/02;B21B13/14;B21B29/00;B21B31/18
主分类号
B21B13/02
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