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发明名称
Способ испытания обделок тоннелей и стволов шахт
摘要
申请公布号
SU114401(A1)
申请公布日期
1957.11.30
申请号
SU19570584583
申请日期
1957.10.14
申请人
ORLOV S.A.
发明人
ORLOV S.A.
分类号
E21D1/00
主分类号
E21D1/00
代理机构
代理人
主权项
地址
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