Keyhole ventilation. A minature ventilation system for winter air supply to meet the respiratory needs of 1-3 persons at rest or in a sedentary occupation,申请号GB20000002650-传众专利搜索

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发明名称	Keyhole ventilation. A minature ventilation system for winter air supply to meet the respiratory needs of 1-3 persons at rest or in a sedentary occupation
摘要
申请公布号	GB0002650(D0)	申请公布日期	2000.03.29
申请号	GB20000002650	申请日期	2000.02.07
申请人	COOPER, JOHN P	发明人
分类号		主分类号
代理机构		代理人
主权项
地址

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