Improvements in or relating to co-axial airscrews,申请号GB19410000139-传众专利搜索

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发明名称	Improvements in or relating to co-axial airscrews
摘要
申请公布号	GB546291(A)	申请公布日期	1942.07.06
申请号	GB19410000139	申请日期	1941.01.03
申请人	LEONARD GASKELL FAIRHURST	发明人
分类号	B64D35/04	主分类号	B64D35/04
代理机构		代理人
主权项
地址

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