MEJORAS EN APARATOS TELEFËNICOS DE PAGO PREVIO,申请号ES19210002387-传众专利搜索

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发明名称	MEJORAS EN APARATOS TELEFËNICOS DE PAGO PREVIO
摘要
申请公布号	ES238721(A1)	申请公布日期	1958.06.01
申请号	ES19210002387	申请日期	1957.11.23
申请人	STANDARD ELECTRICA, S.A.	发明人
分类号	H04M;(IPC1-7):H04M	主分类号	H04M
代理机构		代理人
主权项
地址

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