Hand-micro-telephone for sound-powered (battery-less) telephone systems,申请号GB19530011358-传众专利搜索

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发明名称	Hand-micro-telephone for sound-powered (battery-less) telephone systems
摘要
申请公布号	GB733263(A)	申请公布日期	1955.07.06
申请号	GB19530011358	申请日期	1953.04.24
申请人	STANDARD TELEPHONES AND CABLES LIMITED	发明人
分类号	H04M1/03;H04R1/10	主分类号	H04M1/03
代理机构		代理人
主权项
地址

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