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发明名称
UN APARATO PARA PERCIBIR Y CONVERTIR EN SE/ALES UNA INDICA- CION DEL CONSUMO DE UN APARATO DE SERVICIO.
摘要
申请公布号
ES461270(A3)
申请公布日期
1978.05.01
申请号
ES19700004612
申请日期
1977.08.01
申请人
INTERNATIONAL TELDATA CORPORATION
发明人
分类号
H04M;(IPC1-7):04M/
主分类号
H04M
代理机构
代理人
主权项
地址
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