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发明名称
SIGNAL SWITCHING DEVICE
摘要
申请公布号
JPS6468689(A)
申请公布日期
1989.03.14
申请号
JP19870225643
申请日期
1987.09.09
申请人
SONY CORP
发明人
SUZUKI HIROYUKI
分类号
G11B20/00;G04G15/00;G11B5/027;H04N5/782;H04N5/7826
主分类号
G11B20/00
代理机构
代理人
主权项
地址
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