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发明名称
摘要
申请公布号
JPH03504792(A)
申请公布日期
1991.10.17
申请号
JP19890500707
申请日期
1989.12.08
申请人
发明人
分类号
G09C1/00;H04K1/04;H04L9/20;H04L9/34;H04N7/169
主分类号
G09C1/00
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