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发明名称
Атмосферный затвор для свечей доменных печей
摘要
申请公布号
SU14971(A1)
申请公布日期
1930.04.30
申请号
SU19280023074
申请日期
1928.01.30
申请人
ZAJTSEV P.D.
发明人
ZAJTSEV P.D.
分类号
C21B7/18
主分类号
C21B7/18
代理机构
代理人
主权项
地址
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