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发明名称
Устройство для проходки подземных галлерей при помощи щита
摘要
申请公布号
SU66366(A1)
申请公布日期
1945.11.30
申请号
SU19440009079
申请日期
1944.08.23
申请人
PIKUL V.S.
发明人
PIKUL V.S.
分类号
E21D9/06
主分类号
E21D9/06
代理机构
代理人
主权项
地址
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