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发明名称
IN-BAND SIGNAL DEVICE
摘要
申请公布号
JPH02145053(A)
申请公布日期
1990.06.04
申请号
JP19880299914
申请日期
1988.11.28
申请人
NEC CORP
发明人
OSHIKA TORU
分类号
H04M3/08;H04M3/22;H04Q1/45
主分类号
H04M3/08
代理机构
代理人
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地址
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