Improvements relating to metering in automatic telephone systems,申请号GB19530015580-传众专利搜索

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发明名称	Improvements relating to metering in automatic telephone systems
摘要
申请公布号	GB733023(A)	申请公布日期	1955.07.06
申请号	GB19530015580	申请日期	1953.06.05
申请人	SIEMENS BROTHERS & CO. LIMITED	发明人	PHILPOTT WILLIAM HARRY
分类号	H04M15/10	主分类号	H04M15/10
代理机构		代理人
主权项
地址

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