Perfectionnements aux hélices aériennes à pas variable,申请号FRD802558-传众专利搜索

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发明名称	Perfectionnements aux hélices aériennes à pas variable
摘要
申请公布号	FR802558(A)	申请公布日期	1936.09.08
申请号	FRD802558	申请日期	1936.03.04
申请人	ROLLS-ROYCE 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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