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发明名称
PERFEZIONAMENTI ALLE TASTIERE ATTE A SOSTITUIRE IL DISCO NEI NORMALI APPARECCHI TELEFONICI
摘要
申请公布号
IT1104059(B)
申请公布日期
1985.10.14
申请号
IT19780040067
申请日期
1978.04.28
申请人
S.R.L. READYPHONE
发明人
分类号
H04Q;(IPC1-7):H04Q/
主分类号
H04Q
代理机构
代理人
主权项
地址
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