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发明名称
INTERCEPTION PREVENTION EQUIPMENT IN CATV SYSTEM
摘要
申请公布号
JPH02256335(A)
申请公布日期
1990.10.17
申请号
JP19890293479
申请日期
1989.11.10
申请人
PIONEER ELECTRON CORP
发明人
NAITO AKIHIKO
分类号
H04N7/16;H04H20/28;H04H20/76;H04H60/15;H04H60/21;H04H60/31
主分类号
H04N7/16
代理机构
代理人
主权项
地址
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