Improvements in or relating to variable-pitch airscrews,申请号GB19390020451-传众专利搜索

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发明名称	Improvements in or relating to variable-pitch airscrews
摘要
申请公布号	GB532127(A)	申请公布日期	1941.01.17
申请号	GB19390020451	申请日期	1939.07.13
申请人	HUBERT NOEL CHARLES;HARRY LAWLEY MILNER	发明人
分类号	B64C11/14	主分类号	B64C11/14
代理机构		代理人
主权项
地址

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