Improvements in or relating to helicopter aircraft,申请号GB19310033992-传众专利搜索

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发明名称	Improvements in or relating to helicopter aircraft
摘要
申请公布号	GB385101(A)	申请公布日期	1932.12.22
申请号	GB19310033992	申请日期	1931.12.08
申请人	BRUNO NAGLER;RAOUL HAFNER	发明人
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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