Improvements in or relating to telephone instruments,申请号GB19350020169-传众专利搜索

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发明名称	Improvements in or relating to telephone instruments
摘要
申请公布号	GB459862(A)	申请公布日期	1937.01.15
申请号	GB19350020169	申请日期	1935.07.15
申请人	AUTOMATIC ELECTRIC COMPANY LIMITED;SIDNEY REYNELL SMITH	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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