Improvements in or relating to dictation system,申请号GB19510024958-传众专利搜索

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发明名称	Improvements in or relating to dictation system
摘要
申请公布号	GB698444(A)	申请公布日期	1953.10.14
申请号	GB19510024958	申请日期	1951.10.25
申请人	DICTAPHONE CORPORATION	发明人
分类号	H04M11/10	主分类号	H04M11/10
代理机构		代理人
主权项
地址

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