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发明名称
COMMUNICATION SWITCHBOARD
摘要
申请公布号
JPH06253018(A)
申请公布日期
1994.09.09
申请号
JP19940025906
申请日期
1994.01.31
申请人
AMERICAN TELEPH & TELEGR CO <ATT>
发明人
ANSONII BUTEITA;ERITSUKU ARAN DOUEJINGU;UEIN RONARUDO KARUBOU;MAAKU OGUDEN ROSUTETSUTO;RAIAN TOI TSUAI
分类号
H04M1/57;H04M3/42;H04M3/436;H04M3/487;H04M3/54;H04M15/00;H04Q3/00;(IPC1-7):H04M3/42
主分类号
H04M1/57
代理机构
代理人
主权项
地址
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