Improvements in or connected with centrifugal fans,申请号GB19370007443-传众专利搜索

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发明名称	Improvements in or connected with centrifugal fans
摘要
申请公布号	GB497213(A)	申请公布日期	1938.12.13
申请号	GB19370007443	申请日期	1937.03.13
申请人	FRANCIS CURTIS WILLIAMS	发明人
分类号	F04D29/28	主分类号	F04D29/28
代理机构		代理人
主权项
地址

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