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发明名称
摘要
申请公布号
JPS542412(B1)
申请公布日期
1979.02.07
申请号
JP19700074031
申请日期
1970.08.25
申请人
发明人
分类号
B21D43/00;B30B15/14;B30B15/18;B30B15/30;G05D13/62;(IPC1-7):B30B15/18
主分类号
B21D43/00
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