Improvements in or relating to systems for the transmission of oscillations,申请号GB19380031945-传众专利搜索

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发明名称	Improvements in or relating to systems for the transmission of oscillations
摘要
申请公布号	GB522004(A)	申请公布日期	1940.06.06
申请号	GB19380031945	申请日期	1938.11.04
申请人	JOHN COLLARD;JOHN EDWARD BEST	发明人
分类号	H04B3/04;H04B3/14	主分类号	H04B3/04
代理机构		代理人
主权项
地址

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