Improvements in aircraft having freely rotative wings,申请号GB19300004577-传众专利搜索

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发明名称	Improvements in aircraft having freely rotative wings
摘要
申请公布号	GB347779(A)	申请公布日期	1931.05.07
申请号	GB19300004577	申请日期	1930.02.11
申请人	THE CIERVA AUTOGIRO COMPANY LIMITED;JUAN DE LA CIERVA	发明人
分类号	B64C27/02	主分类号	B64C27/02
代理机构		代理人
主权项
地址

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