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发明名称
VENTILASJONSSYSTEM TIL BRUK UNDER TUNNELSPRENGNING.
摘要
申请公布号
NO163071(B)
申请公布日期
1989.12.18
申请号
NO19870002957
申请日期
1987.07.15
申请人
ANDERSENS MEK. VERKSTED A/S
发明人
FINDEN, BJOERN
分类号
E21F;E21F1/08;(IPC1-7):E21F1/08
主分类号
E21F
代理机构
代理人
主权项
地址
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