Hélice métallique à pas variable en vol,申请号FRD709665-传众专利搜索

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发明名称	Hélice métallique à pas variable en vol
摘要
申请公布号	FR709665(A)	申请公布日期	1931.08.12
申请号	FRD709665	申请日期	1931.01.19
申请人		发明人	LUBENOFF ASSEN
分类号	B64C11/36	主分类号	B64C11/36
代理机构		代理人
主权项
地址

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