Transformer calibrating apparatus,申请号US19470725033-传众专利搜索

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发明名称	Transformer calibrating apparatus
摘要
申请公布号	US2481198(A)	申请公布日期	1949.09.06
申请号	US19470725033	申请日期	1947.01.29
申请人	CALDWELL RICHARD A	发明人	CALDWELL RICHARD A.
分类号	G01R1/28	主分类号	G01R1/28
代理机构		代理人
主权项
地址

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