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发明名称
TRUNK LINE INTERFACE DEVICE
摘要
申请公布号
JPH03120939(A)
申请公布日期
1991.05.23
申请号
JP19890257859
申请日期
1989.10.04
申请人
HITACHI LTD
发明人
AZEYANAGI MIKISUKE
分类号
H04M3/22;H04M3/12;H04Q3/42
主分类号
H04M3/22
代理机构
代理人
主权项
地址
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