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经营范围
发明名称
SISTEMA DI GESTIONE TELEFONICA AZIENDALE
摘要
申请公布号
ITUD910087(D0)
申请公布日期
1991.05.21
申请号
IT1991UD00087
申请日期
1991.05.21
申请人
DADA
发明人
PETRAZ DAVIDE LUIGI;PETRAZ DANIELE
分类号
H04M
主分类号
H04M
代理机构
代理人
主权项
地址
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