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发明名称
Крепление очистного пространства
摘要
申请公布号
SU62567(A1)
申请公布日期
1942.11.30
申请号
SU19400034673D
申请日期
1940.08.09
申请人
YATSENKO A.V.
发明人
YATSENKO A.V.
分类号
E21D17/04
主分类号
E21D17/04
代理机构
代理人
主权项
地址
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