VENTILATION METHOD IN LOCAL SPACE OF TUNNEL, ETC. BY TORNADO,申请号JP19910032720-传众专利搜索

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发明名称	VENTILATION METHOD IN LOCAL SPACE OF TUNNEL, ETC. BY TORNADO
摘要
申请公布号	JPH04272400(A)	申请公布日期	1992.09.29
申请号	JP19910032720	申请日期	1991.02.27
申请人	KUMAGAI GUMI CO LTD	发明人	SUGIYAMA AKIRA
分类号	E21F1/00;F24F7/06	主分类号	E21F1/00
代理机构		代理人
主权项
地址

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