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发明名称
HIGH-FREQUENCY CONVERSION TYPE CATV CONVERTER WITH CHANNEL SWITCHING SOUND PROOFING FUNCTION
摘要
申请公布号
JPH04127677(A)
申请公布日期
1992.04.28
申请号
JP19900247081
申请日期
1990.09.19
申请人
HITACHI LTD
发明人
HIRAI JUN;HIRANO SHINJI
分类号
H04N5/40;H04N7/16;H04N7/173
主分类号
H04N5/40
代理机构
代理人
主权项
地址
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