Improvements in telephone party line metering systems,申请号GB19500019332-传众专利搜索

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发明名称	Improvements in telephone party line metering systems
摘要
申请公布号	GB684637(A)	申请公布日期	1952.12.24
申请号	GB19500019332	申请日期	1950.08.02
申请人	THE GENERAL ELECTRIC COMPANY LIMITED;JOHN SCOWCROFT	发明人
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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