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发明名称
摘要
申请公布号
JPS5436963(B2)
申请公布日期
1979.11.12
申请号
JP19750000254
申请日期
1974.12.30
申请人
发明人
分类号
C21D9/663;C21D1/00;C21D1/26;C21D1/74;C21D1/767;C21D9/54;(IPC1-7):C21D9/54
主分类号
C21D9/663
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代理人
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