Improvements in or relating to telephone desk-sets,申请号GB19500019915-传众专利搜索

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发明名称	Improvements in or relating to telephone desk-sets
摘要
申请公布号	GB674587(A)	申请公布日期	1952.06.25
申请号	GB19500019915	申请日期	1950.08.10
申请人	TELEFONBAU UND NORMALZEIT, GESELLSCHAFT MIT BESCHRAENKTER HAFTUNG	发明人
分类号	H04M1/02	主分类号	H04M1/02
代理机构		代理人
主权项
地址

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