Air circulating device,申请号US19370127213-传众专利搜索

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发明名称	Air circulating device
摘要
申请公布号	US2159189(A)	申请公布日期	1939.05.23
申请号	US19370127213	申请日期	1937.02.23
申请人	WAIS WILLIAM R	发明人	WAIS WILLIAM R.
分类号	F04D29/54	主分类号	F04D29/54
代理机构		代理人
主权项
地址

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