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发明名称
METHOD OF EXCHANGE FIREBRICK SUBSTITUTION IN COMMUNICATION SWITCHBOARD
摘要
申请公布号
JPH06335038(A)
申请公布日期
1994.12.02
申请号
JP19940119660
申请日期
1994.05.10
申请人
AMERICAN TELEPH & TELEGR CO <ATT>
发明人
ROORENSU BARANIYAI;FURANSHISU HENRII BATORAA;JIYON SESHIRU KOTSUKUSU;CHI HANGU RIN;NATSUTSU BERARAGUHABAN SURINIBASAN
分类号
H04Q3/52;H04Q3/68;(IPC1-7):H04Q3/52
主分类号
H04Q3/52
代理机构
代理人
主权项
地址
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