Hélice à pas variable,申请号FRD852906-传众专利搜索

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发明名称	Hélice à pas variable
摘要
申请公布号	FR852906(A)	申请公布日期	1940.03.06
申请号	FRD852906	申请日期	1939.04.11
申请人	THE BRISTOL AEROPLANE COMPANY LIMITED	发明人
分类号	B64C11/42	主分类号	B64C11/42
代理机构		代理人
主权项
地址

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