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发明名称
CONTROL SIGNAL DUTY RATIO DISCRIMINATING METHOD AND DEVICE OF VIDEO CASSETTE RECORDER
摘要
申请公布号
KR1019950013377(B1)
申请公布日期
1995.11.02
申请号
KR1019880008053
申请日期
1988.06.30
申请人
发明人
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主分类号
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代理人
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