Improvements in and relating to screw propellers,申请号GB19310014427-传众专利搜索

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发明名称	Improvements in and relating to screw propellers
摘要
申请公布号	GB379327(A)	申请公布日期	1932.08.15
申请号	GB19310014427	申请日期	1931.05.15
申请人	LLEWELLYN WYNN WILLIAMS	发明人
分类号	B64C11/18	主分类号	B64C11/18
代理机构		代理人
主权项
地址

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