Improvements in and relating to airscrew,申请号GB19320027470-传众专利搜索

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发明名称	Improvements in and relating to airscrew
摘要
申请公布号	GB406781(A)	申请公布日期	1934.03.08
申请号	GB19320027470	申请日期	1932.10.04
申请人	JOHN CARTER	发明人
分类号	B64C11/24	主分类号	B64C11/24
代理机构		代理人
主权项
地址

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