Signal change detector for radio surveillance,申请号GB19900007910-传众专利搜索

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发明名称	Signal change detector for radio surveillance
摘要
申请公布号	GB2242799(A)	申请公布日期	1991.10.09
申请号	GB19900007910	申请日期	1990.04.06
申请人	* SIEMENS PLESSEY ELECTRONIC SYSTEMS LIMITED	发明人	TREVOR JOHN * CALLAWAY
分类号	H03J7/32	主分类号	H03J7/32
代理机构		代理人
主权项
地址

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