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经营范围
发明名称
TUNNEL VENTILATION CONTROL DEVICE
摘要
申请公布号
JPH02275000(A)
申请公布日期
1990.11.09
申请号
JP19890096903
申请日期
1989.04.17
申请人
TOSHIBA CORP
发明人
ISHIZUKA TAKESHI;WATANABE TAKAHIRO
分类号
E21F1/00;F24F7/007;F24F7/06
主分类号
E21F1/00
代理机构
代理人
主权项
地址
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