APPARATUS FOR DETECTING A NULL BETWEEN INPUT, PHASE OPPOSED, A.C. ANALOG SIGNALS,申请号GB19670053273-传众专利搜索

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发明名称	APPARATUS FOR DETECTING A NULL BETWEEN INPUT, PHASE OPPOSED, A.C. ANALOG SIGNALS
摘要
申请公布号	GB1202073(A)	申请公布日期	1970.08.12
申请号	GB19670053273	申请日期	1967.11.22
申请人	AMERICAN OPTICAL CORPORATION	发明人
分类号	G06G7/14;G06G7/161	主分类号	G06G7/14
代理机构		代理人
主权项
地址

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