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发明名称
摘要
申请公布号
JPS535083(Y2)
申请公布日期
1978.02.08
申请号
JP19740087709U
申请日期
1974.07.25
申请人
发明人
分类号
B21J9/08;H05B1/00;(IPC1-7):B21J9/08
主分类号
B21J9/08
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