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发明名称
RECORD AMPLIFIER
摘要
申请公布号
SU1555709(A1)
申请公布日期
1990.04.07
申请号
SU19864060050
申请日期
1986.04.25
申请人
BULYCHEV YURIJ A,SU
发明人
BULYCHEV YURIJ A,SU
分类号
G11B20/00;H03F1/34
主分类号
G11B20/00
代理机构
代理人
主权项
地址
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