Pitch changing mechanism,申请号US19410374440-传众专利搜索

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发明名称	Pitch changing mechanism
摘要
申请公布号	US2392364(A)	申请公布日期	1946.01.08
申请号	US19410374440	申请日期	1941.01.15
申请人	UNITED AIRCRAFT CORPORATION	发明人	CALDWELL FRANK W.;MARTIN ERLE;VINCENT EDWIN E.
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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