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发明名称
CIRCUITO RIVELATORE DI CHIAMATA ACUSTICA,SPECIALMENTE PER APPARECCHI TELEFONICI
摘要
申请公布号
IT1143632(B)
申请公布日期
1986.10.22
申请号
IT19770019557
申请日期
1977.01.24
申请人
SOC' ITALIANA TELECOMUNICAZIONI SIEMENS SPA;ITALTEL SPA
发明人
PIPITONE ROBERTO
分类号
H04M19/04;(IPC1-7):H04M/
主分类号
H04M19/04
代理机构
代理人
主权项
地址
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