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发明名称
PNEUMATIC-BOTTLE ROOF SUPPORT
摘要
申请公布号
SU1006767(A1)
申请公布日期
1983.03.23
申请号
SU19802979619
申请日期
1980.06.12
申请人
DO POLT INSTITUT
发明人
BUNAKOV EVGENIJ S,SU;KOMPAN VLADIMIR A,SU
分类号
E21D23/00;(IPC1-7):E21D23/00
主分类号
E21D23/00
代理机构
代理人
主权项
地址
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