Perfectionnements aux systèmes de ventilation,申请号FRD850969-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	FR850969(A)	申请公布日期	1939.12.30
申请号	FRD850969	申请日期	1939.02.27
申请人		发明人	STEWART FREDERICK CHARLES
分类号	B63J2/08	主分类号	B63J2/08
代理机构		代理人
主权项
地址

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