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发明名称
SIGNAL DEGRADATION DETECTOR
摘要
申请公布号
JPH0242819(A)
申请公布日期
1990.02.13
申请号
JP19880193853
申请日期
1988.08.02
申请人
NEC CORP
发明人
HAYASHI KENJI
分类号
H03M1/10
主分类号
H03M1/10
代理机构
代理人
主权项
地址
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