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发明名称
POWER ROOF SUPPORT
摘要
申请公布号
SU750096(A1)
申请公布日期
1980.07.23
申请号
SU19782605958
申请日期
1978.04.19
申请人
VNI PK UGOLNYJ INSTITUT
发明人
BABAYANTS ARSEN A,SU;BYKOV YURIJ ,SU
分类号
E21D19/02;E21D23/00;E21D23/03;E21D23/12;(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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