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经营范围
发明名称
SYSTEM OF AUXILIARY AIRWAYS
摘要
申请公布号
SU1665042(A1)
申请公布日期
1991.07.23
申请号
SU19884439163
申请日期
1988.06.10
申请人
GORNYJ I KOLSKOGO FILIALA IM.S.M.KIROVA AN SSSR
发明人
DEMIDOV YURIJ V,SU;TIMOFEEV PETR S,SU
分类号
E21F1/00;E21D9/14
主分类号
E21F1/00
代理机构
代理人
主权项
地址
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