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发明名称
IN-BAND SIGNAL DEVICE
摘要
申请公布号
JPH02195765(A)
申请公布日期
1990.08.02
申请号
JP19890014082
申请日期
1989.01.25
申请人
NEC CORP
发明人
KAGAWA MASATO
分类号
H04M3/26;H04B3/46
主分类号
H04M3/26
代理机构
代理人
主权项
地址
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