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发明名称
CORDLESS KEYBOARD DEVICE FOR COMPUTER USING INFRARED RAY
摘要
申请公布号
KR1019920006118(B1)
申请公布日期
1992.07.27
申请号
KR1019890018654
申请日期
1989.12.15
申请人
发明人
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主分类号
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