Helicopter and rotating wing aircraft,申请号US19350013633-传众专利搜索

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法人/股东/高管

发明名称	Helicopter and rotating wing aircraft
摘要
申请公布号	US2047776(A)	申请公布日期	1936.07.14
申请号	US19350013633	申请日期	1935.03.29
申请人	RAOUL HAFNER	发明人	HAFNER RAOUL
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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