Power supply means,申请号US19480023460-传众专利搜索

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发明名称	Power supply means
摘要
申请公布号	US2503774(A)	申请公布日期	1950.04.11
申请号	US19480023460	申请日期	1948.04.27
申请人	THE UNION SWITCH & SIGNAL COMPANY	发明人	SORENSEN ANDREW J.
分类号	H02J7/00;H02J7/02;H02M1/10	主分类号	H02J7/00
代理机构		代理人
主权项
地址

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