Ducted fan aircraft,申请号US19580770231-传众专利搜索

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法人/股东/高管

发明名称	Ducted fan aircraft
摘要
申请公布号	US2988301(A)	申请公布日期	1961.06.13
申请号	US19580770231	申请日期	1958.10.28
申请人	FLETCHER CHARLES J	发明人	FLETCHER CHARLES J.
分类号	B64C29/00	主分类号	B64C29/00
代理机构		代理人
主权项
地址

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