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发明名称
摘要
申请公布号
JPS5338262(B1)
申请公布日期
1978.10.14
申请号
JP19700113692
申请日期
1970.12.19
申请人
发明人
分类号
B21C29/00;B21C23/00;(IPC1-7):B21C23/00
主分类号
B21C29/00
代理机构
代理人
主权项
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