APERFEICOAMENTO EM BLOQUEADOR DE EXTENSAO TELEFONICA,申请号BR1984PI03608-传众专利搜索

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发明名称	APERFEICOAMENTO EM BLOQUEADOR DE EXTENSAO TELEFONICA
摘要
申请公布号	BR8403608(A)	申请公布日期	1985.02.20
申请号	BR1984PI03608	申请日期	1984.07.20
申请人	EMBRACOM ELETRONICA S/A	发明人	TSUMEO MAEDA
分类号	H04M1/68;H04M1/72;(IPC1-7):H04M1/68	主分类号	H04M1/68
代理机构		代理人
主权项
地址

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