Improvements in and relating to the ventilation of rooms and the like,申请号GB19370009517-传众专利搜索

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发明名称	Improvements in and relating to the ventilation of rooms and the like
摘要
申请公布号	GB488387(A)	申请公布日期	1938.07.06
申请号	GB19370009517	申请日期	1937.04.03
申请人	JOSEF HENNIG	发明人
分类号	F24F3/16	主分类号	F24F3/16
代理机构		代理人
主权项
地址

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