Perfectionnements aux systèmes de ventilation,申请号FRD824786-传众专利搜索

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发明名称	Perfectionnements aux systèmes de ventilation
摘要
申请公布号	FR824786(A)	申请公布日期	1938.02.16
申请号	FRD824786	申请日期	1937.07.24
申请人	BURGESS BATTERY COMPANY	发明人
分类号	F24F7/10	主分类号	F24F7/10
代理机构		代理人
主权项
地址

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