Electrical indicating apparatus,申请号US19560617365-传众专利搜索

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发明名称	Electrical indicating apparatus
摘要
申请公布号	US2994575(A)	申请公布日期	1961.08.01
申请号	US19560617365	申请日期	1956.10.22
申请人	BELL & HOWELL COMPANY	发明人	JR. WALTER L. COLTERJOHN,;STANONIS ALPHONSO F.
分类号	G01R13/40	主分类号	G01R13/40
代理机构		代理人
主权项
地址

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