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发明名称
CONTROLLER FOR VENTILATION OF TUNNEL
摘要
申请公布号
JPS59213900(A)
申请公布日期
1984.12.03
申请号
JP19830085816
申请日期
1983.05.18
申请人
HITACHI SEISAKUSHO KK
发明人
YOSHIOKA NOBUHIKO
分类号
E21F1/00;F24F7/06;(IPC1-7):E21F1/00
主分类号
E21F1/00
代理机构
代理人
主权项
地址
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