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发明名称
摘要
申请公布号
SU390169(A1)
申请公布日期
1973.07.11
申请号
SU19711662305
申请日期
1971.05.24
申请人
发明人
分类号
F27D3/00;C21D9/00;(IPC1-7):C21D9/00
主分类号
F27D3/00
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