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发明名称
摘要
申请公布号
JPH0437893(Y2)
申请公布日期
1992.09.04
申请号
JP19870051562U
申请日期
1987.04.07
申请人
发明人
分类号
C21D9/63;(IPC1-7):C21D9/63
主分类号
C21D9/63
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代理人
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