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经营范围
发明名称
TRACK FOLLOWING SERVO FOR HIGHER DENSITY DISK FILES
摘要
申请公布号
EP0139531(B1)
申请公布日期
1990.04.11
申请号
EP19840307200
申请日期
1984.10.19
申请人
UNISYS CORPORATION
发明人
EL-SADI, ASHRAF IBRAHIM
分类号
G05B11/36;G05D3/12;G05D3/14;G11B5/596;G11B21/10;H03H11/12
主分类号
G05B11/36
代理机构
代理人
主权项
地址
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