Variable-speed gearing for driving propellers,申请号US19450603151-传众专利搜索

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发明名称	Variable-speed gearing for driving propellers
摘要
申请公布号	US2547161(A)	申请公布日期	1951.04.03
申请号	US19450603151	申请日期	1945.07.04
申请人	AVCO MANUFACTURING CORPORATION	发明人	JOHNSON FRED J.
分类号	B64D27/00;F16H3/66	主分类号	B64D27/00
代理机构		代理人
主权项
地址

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