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发明名称
摘要
申请公布号
JPS5150823(Y2)
申请公布日期
1976.12.07
申请号
JP19730078060U
申请日期
1973.06.29
申请人
发明人
分类号
B21C27/00;B21C23/21;B30B1/32;(IPC1-7):B21C23/21
主分类号
B21C27/00
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代理人
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