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经营范围
发明名称
PREPARATORY WORKING ROOF SUPPORT
摘要
申请公布号
SU717353(A1)
申请公布日期
1980.02.25
申请号
SU19742083451
申请日期
1974.12.13
申请人
INST GEOTEKHNICHESKOI MEKHANI
发明人
GLUSHKO VASILIJ T,SU;STRELTSOV EVGENIJ V,SU;SHTEPA ALEKSANDR V,SU;STADNICHUK NIKOLAJ P,SU
分类号
E21D11/14;(IPC1-7):E21D11/14
主分类号
E21D11/14
代理机构
代理人
主权项
地址
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