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发明名称
PNEUMATIC FILLING-IN PIPELINE
摘要
申请公布号
SU663857(A1)
申请公布日期
1979.05.25
申请号
SU19772485157
申请日期
1977.05.10
申请人
DO NI UGOLNYJ INSTITUT
发明人
MISHCHENKO NIKOLAJ V,SU;NEBROJ VLADIMIR M,SU
分类号
E21F15/08;(IPC1-7):E21F15/08
主分类号
E21F15/08
代理机构
代理人
主权项
地址
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