Speed controlling means,申请号US19380215935-传众专利搜索

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发明名称	Speed controlling means
摘要
申请公布号	US2219087(A)	申请公布日期	1940.10.22
申请号	US19380215935	申请日期	1938.06.25
申请人	UNITED AIRERAFT CORPORATION	发明人	CALDWELL FRANK W.
分类号	G05D13/00	主分类号	G05D13/00
代理机构		代理人
主权项
地址

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