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发明名称
IMPROVEMENTS IN OR RELATING TO TELEPHONE CIRCUITS
摘要
申请公布号
GB2176373(B)
申请公布日期
1989.12.13
申请号
GB19860010627
申请日期
1986.04.30
申请人
* SGS MICROELETTRONICA S P A
发明人
MARCO * SILIGONI;VANNI * SAVIOTTI;EMILIO * LORENA
分类号
H04Q3/42;H04M19/00
主分类号
H04Q3/42
代理机构
代理人
主权项
地址
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