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发明名称
Способ замораживания горных пород при проходке шахтных стволов
摘要
申请公布号
SU117243(A1)
申请公布日期
1958.11.30
申请号
SU19580596378
申请日期
1958.04.07
申请人
LUKYANOV V.S.
发明人
LUKYANOV V.S.
分类号
E21D1/12
主分类号
E21D1/12
代理机构
代理人
主权项
地址
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