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发明名称
METHOD OF DETERMINING THAWING DEPTH OF ROCK
摘要
申请公布号
SU1074996(A2)
申请公布日期
1984.02.23
申请号
SU19823519836
申请日期
1982.12.10
申请人
IVANOV GENNADIJ,SU
发明人
IVANOV GENNADIJ I,SU
分类号
E21C39/00;(IPC1-7):E21C39/00
主分类号
E21C39/00
代理机构
代理人
主权项
地址
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