APARELHO PARA DISCRIMINAR CHAMADAS TELEFONICAS,申请号BR1991PI00913-传众专利搜索

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发明名称	APARELHO PARA DISCRIMINAR CHAMADAS TELEFONICAS
摘要
申请公布号	BR9100913(A)	申请公布日期	1992.10.27
申请号	BR1991PI00913	申请日期	1991.02.28
申请人	NELSON MARTINS COSTA FILHO	发明人	NELSON MARTINS COSTA FILHO
分类号	H04M1/66;(IPC1-7):H04M1/66	主分类号	H04M1/66
代理机构		代理人
主权项
地址

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