Improvements relating to stand-by systems for direct current power supplies,申请号GB19520017146-传众专利搜索

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发明名称	Improvements relating to stand-by systems for direct current power supplies
摘要
申请公布号	GB705547(A)	申请公布日期	1954.03.17
申请号	GB19520017146	申请日期	1952.07.08
申请人	WESTINGHOUSE BRAKE & SIGNAL COMPANY LIMITED;ALEC HERVEY BENNETT WALKER	发明人
分类号	H02J7/34;H04M19/00	主分类号	H02J7/34
代理机构		代理人
主权项
地址

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