Remote impedance system apparatus for controlling dictating machines,申请号US19540465061-传众专利搜索

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发明名称	Remote impedance system apparatus for controlling dictating machines
摘要
申请公布号	US2979568(A)	申请公布日期	1961.04.11
申请号	US19540465061	申请日期	1954.10.27
申请人	UNILEVER LIMITED	发明人	LOGAN DAVID GERALD
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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