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发明名称
摘要
申请公布号
JPH0117367(Y2)
申请公布日期
1989.05.19
申请号
JP19830145359U
申请日期
1983.09.20
申请人
发明人
分类号
B21B37/68;B21B37/00;(IPC1-7):B21B37/00
主分类号
B21B37/68
代理机构
代理人
主权项
地址
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