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发明名称
摘要
申请公布号
JPS56100204(U)
申请公布日期
1981.08.07
申请号
JP19790179742U
申请日期
1979.12.25
申请人
发明人
分类号
B21B27/10;B21B28/00;(IPC1-7):B21B28/00
主分类号
B21B27/10
代理机构
代理人
主权项
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