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经营范围
发明名称
EQUIPO VIDEOTELEFONICO UNIDIRECCIONAL.
摘要
申请公布号
ES224032(Y)
申请公布日期
1977.06.01
申请号
ES19320002240U
申请日期
1976.10.26
申请人
CASELLAS VIDAL EDUARDO
发明人
分类号
H04M;H04N;(IPC1-7):04M/
主分类号
H04M
代理机构
代理人
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