AIRCRAFT PROPELLERS FOR COMBINED AIRPLANE-HELICOPTER FLYING MACHINES,申请号CAD542490-传众专利搜索

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发明名称	AIRCRAFT PROPELLERS FOR COMBINED AIRPLANE-HELICOPTER FLYING MACHINES
摘要
申请公布号	CA542490(A)	申请公布日期	1957.06.18
申请号	CAD542490	申请日期
申请人	MINISTERIO DA AERONAUTICA	发明人	HENRICH C. J. FOCKE
分类号		主分类号
代理机构		代理人
主权项
地址

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