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经营范围
发明名称
CATV NOTIFYING SYSTEM
摘要
申请公布号
JPH01220590(A)
申请公布日期
1989.09.04
申请号
JP19880044184
申请日期
1988.02.29
申请人
NEC CORP
发明人
SAITO TOSHIO
分类号
H04N7/16
主分类号
H04N7/16
代理机构
代理人
主权项
地址
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