Helicopter aeroplane with alpha plurality of propellers,申请号US19290360850-传众专利搜索

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发明名称	Helicopter aeroplane with alpha plurality of propellers
摘要
申请公布号	US1750108(A)	申请公布日期	1930.03.11
申请号	US19290360850	申请日期	1929.05.06
申请人	JAKOB HOJNOWSKI	发明人	HOJNOWSKI JAKOB
分类号	B64C27/04	主分类号	B64C27/04
代理机构		代理人
主权项
地址

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