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发明名称
摘要
申请公布号
JPS5417264(U)
申请公布日期
1979.02.03
申请号
JP19770090223U
申请日期
1977.07.06
申请人
发明人
分类号
B21D53/04;F28F3/12;(IPC1-7):F28F3/12
主分类号
B21D53/04
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代理人
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