System for providing an energizing direct current,申请号US19430474950-传众专利搜索

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发明名称	System for providing an energizing direct current
摘要
申请公布号	US2439409(A)	申请公布日期	1948.04.13
申请号	US19430474950	申请日期	1943.02.06
申请人	MOTOROLA, INC.	发明人	MITCHELL DONALD H.
分类号	H02J7/02;H02M7/62	主分类号	H02J7/02
代理机构		代理人
主权项
地址

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