Electrical measuring instrument,申请号US19240757821-传众专利搜索

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发明名称	Electrical measuring instrument
摘要
申请公布号	US1762780(A)	申请公布日期	1930.06.10
申请号	US19240757821	申请日期	1924.12.24
申请人	WESTERN ELECTRIC COMPANY, INCORPORATED	发明人	HIBBARD FRANK H.
分类号	G06K11/00	主分类号	G06K11/00
代理机构		代理人
主权项
地址

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