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发明名称
摘要
申请公布号
JPS53113203(U)
申请公布日期
1978.09.09
申请号
JP19770018176U
申请日期
1977.02.16
申请人
发明人
分类号
C21B7/12;C21B7/14;C21B7/16;(IPC1-7):C21B7/14
主分类号
C21B7/12
代理机构
代理人
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地址
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