Improvements in or relating to helicopters,申请号GB19510022001-传众专利搜索

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发明名称	Improvements in or relating to helicopters
摘要
申请公布号	GB758337(A)	申请公布日期	1956.10.03
申请号	GB19510022001	申请日期	1951.09.19
申请人	PERCIVAL AIRCRAFT LIMITED;LESLIE GEORGE FRISE;JOHN WOTTON	发明人
分类号	B64C25/04	主分类号	B64C25/04
代理机构		代理人
主权项
地址

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