A frequency control system for a motor-alternator,申请号GB19490018323-传众专利搜索

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发明名称	A frequency control system for a motor-alternator
摘要
申请公布号	GB687411(A)	申请公布日期	1953.02.11
申请号	GB19490018323	申请日期	1949.07.11
申请人	NATIONAL RESEARCH DEVELOPMENT CORPORATION	发明人	WRATHALL ROBERT WILLIAM
分类号	H02P9/42	主分类号	H02P9/42
代理机构		代理人
主权项
地址

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