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发明名称
DISPOSITIVO PER NEUTRALIZZARE LA VOCE DELL'UTENTE TELEFONICO CONL'INTERLOCUTORE TELEFONICO.
摘要
申请公布号
IT8319648(D0)
申请公布日期
1983.02.18
申请号
IT19830019648
申请日期
1983.02.18
申请人
FERRARIO ALESSANDRO
发明人
ALESSANDRO FERRARIO
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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