Variable pitch propeller,申请号US19440520658-传众专利搜索

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发明名称	Variable pitch propeller
摘要
申请公布号	US2417917(A)	申请公布日期	1947.03.25
申请号	US19440520658	申请日期	1944.02.01
申请人	EVEREL PROPELLER CORPORATION	发明人	EVERTS WALTER W.
分类号	B64C11/34	主分类号	B64C11/34
代理机构		代理人
主权项
地址

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