Improvements in or relating to radio apparatus,申请号GB19300028437-传众专利搜索

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发明名称	Improvements in or relating to radio apparatus
摘要
申请公布号	GB362056(A)	申请公布日期	1931.12.03
申请号	GB19300028437	申请日期	1930.09.23
申请人	THE SPARKS-WITHINGTON COMPANY	发明人
分类号		主分类号
代理机构		代理人
主权项
地址

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