An improved rotor head for helicopters and gyroplanes,申请号GB19460024581-传众专利搜索

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发明名称	An improved rotor head for helicopters and gyroplanes
摘要
申请公布号	GB615293(A)	申请公布日期	1949.01.04
申请号	GB19460024581	申请日期	1946.08.19
申请人	HAROLD WALTER FRANKLIN	发明人
分类号	B64C27/41	主分类号	B64C27/41
代理机构		代理人
主权项
地址

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