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发明名称
SISTEMA DE INTERCOMUNICACIËN POR MEDIOS MICROFËNICOS
摘要
申请公布号
ES269464(A1)
申请公布日期
1961.11.16
申请号
ES19640002694
申请日期
1961.07.29
申请人
ALVAREZ SOLAR, ADOLFO
发明人
分类号
H04R;(IPC1-7):H04R
主分类号
H04R
代理机构
代理人
主权项
地址
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