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发明名称
POLLING METHOD FOR CATV
摘要
申请公布号
JPH02145083(A)
申请公布日期
1990.06.04
申请号
JP19880299916
申请日期
1988.11.28
申请人
NEC CORP
发明人
ONO TAMIO
分类号
H04N7/173
主分类号
H04N7/173
代理机构
代理人
主权项
地址
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