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发明名称
TUNNEL VENTILATION MONITOR
摘要
申请公布号
JPH10220198(A)
申请公布日期
1998.08.18
申请号
JP19970033079
申请日期
1997.01.31
申请人
NISSIN ELECTRIC CO LTD
发明人
TAKADA KEIICHIRO;KURATA NORIMITSU
分类号
E21F1/00;(IPC1-7):E21F1/00
主分类号
E21F1/00
代理机构
代理人
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地址
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