WATERPROOF DEVICE FOR VENTILATION OPENING,申请号JP19970202425-传众专利搜索

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发明名称	WATERPROOF DEVICE FOR VENTILATION OPENING
摘要
申请公布号	JPH1130100(A)	申请公布日期	1999.02.02
申请号	JP19970202425	申请日期	1997.07.11
申请人	TOKYO ELECTRIC POWER CO INC:THE;TANIKAWA DENKI SEISAKUSHO:KK	发明人	AKUTAGAWA KAZUO;AKIYAMA KOJI;NISHIOKA SHIGEKI;TAKANO SHIGERU
分类号	E21F1/10;E21F1/14;F24F7/04	主分类号	E21F1/10
代理机构		代理人
主权项
地址

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