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发明名称
Устройство для увлажнения угольного пласта
摘要
申请公布号
SU112449(A1)
申请公布日期
1957.11.30
申请号
SU19570580132
申请日期
1957.07.05
申请人
KUZNETSOV YU.V.;ROGANOV YU.R.
发明人
KUZNETSOV YU.V.;ROGANOV YU.R.
分类号
E21F5/02
主分类号
E21F5/02
代理机构
代理人
主权项
地址
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