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发明名称
摘要
申请公布号
JPS52164137(U)
申请公布日期
1977.12.13
申请号
JP19760074289U
申请日期
1976.06.07
申请人
发明人
分类号
B21J13/10;(IPC1-7):B21J13/10
主分类号
B21J13/10
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代理人
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