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发明名称
SUBSCRIBER'S LINE SIGNAL DEVICE
摘要
申请公布号
JPH01142849(A)
申请公布日期
1989.06.05
申请号
JP19870299771
申请日期
1987.11.30
申请人
NEC CORP
发明人
MINAMI HIDETAKA
分类号
H04M1/26;G06F12/02;G06F12/06;G06F13/00
主分类号
H04M1/26
代理机构
代理人
主权项
地址
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