Improvements in or relating to electric switching arrangements for use in wireless receivers,申请号GB19300006434-传众专利搜索

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发明名称	Improvements in or relating to electric switching arrangements for use in wireless receivers
摘要
申请公布号	GB349576(A)	申请公布日期	1931.05.26
申请号	GB19300006434	申请日期	1930.02.26
申请人	THE GRAMOPHONE COMPANY LIMITED;ARTHUR HENRY COOPER	发明人
分类号	H01H21/22	主分类号	H01H21/22
代理机构		代理人
主权项
地址

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