Improvements in ventilating devices,申请号GB19370022788-传众专利搜索

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发明名称	Improvements in ventilating devices
摘要
申请公布号	GB480305(A)	申请公布日期	1938.02.21
申请号	GB19370022788	申请日期	1937.08.19
申请人	FRANZ JOSEF KURTH	发明人
分类号	F24F7/06	主分类号	F24F7/06
代理机构		代理人
主权项
地址

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