MEJORAS EN SISTEMAS TELEFoNICOS AUTOMáTICOS,申请号ES19490002120-传众专利搜索

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发明名称	MEJORAS EN SISTEMAS TELEFoNICOS AUTOMáTICOS
摘要
申请公布号	ES212049(A1)	申请公布日期	1954.04.01
申请号	ES19490002120	申请日期	1953.11.06
申请人	STANDARD ELECTRICA, S.A.	发明人
分类号	H04Q3/28;(IPC1-7):H04	主分类号	H04Q3/28
代理机构		代理人
主权项
地址

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