Improvements in or relating to frequency-shift telegraphy receivers,申请号GB19570029952-传众专利搜索

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发明名称	Improvements in or relating to frequency-shift telegraphy receivers
摘要
申请公布号	GB872572(A)	申请公布日期	1961.07.12
申请号	GB19570029952	申请日期	1957.09.24
申请人	PHILIPS ELECTRICAL INDUSTRIES LIMITED	发明人
分类号	H04L27/14	主分类号	H04L27/14
代理机构		代理人
主权项
地址

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