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发明名称
DEVICE FOR EXPANDING ARCUATE ROOF SUPPORT FROM SPECIAL ROLLED SHAPE
摘要
申请公布号
SU781356(A1)
申请公布日期
1980.11.23
申请号
SU19782619632
申请日期
1978.05.23
申请人
INST GEOTEKHNICHESKOI MEKHANI
发明人
GLUSHKO VASILIJ T,SU;SHTEPA ALEKSANDR V,SU;EVTUSHENKO VIKTOR V,SU;USATENKO BORIS S,SU;STADNICHUK NIKOLAJ P,SU
分类号
E21D13/04;(IPC1-7):E21D13/04
主分类号
E21D13/04
代理机构
代理人
主权项
地址
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