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发明名称
POWERED ROOF SUPPORT FOR THICK SEAMS
摘要
申请公布号
SU609905(A1)
申请公布日期
1978.06.05
申请号
SU19762379138
申请日期
1976.07.07
申请人
VNI PK UGOLNYJ I;PROIZV OB YUZHKUZBASSUGOL
发明人
MANKO ANATOLIJ A,SU;TOLKACHEV NIKOLAJ ,SU;POPOV VIKTOR ,SU
分类号
E21D19/02;E21D23/00;E21D23/03;E21D23/06;(IPC1-7):E21D23/00
主分类号
E21D19/02
代理机构
代理人
主权项
地址
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