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发明名称
Способ тампонирования выработок при подземной газификации горючих
摘要
申请公布号
SU61361(A1)
申请公布日期
1941.11.30
申请号
SU19400032666
申请日期
1940.05.17
申请人
GUSYATNIKOV S.P.
发明人
GUSYATNIKOV S.P.
分类号
E21B33/138;E04B1/62
主分类号
E21B33/138
代理机构
代理人
主权项
地址
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