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发明名称
Verbesserter Focusfühler für optische Informationspeicherungssysteme
摘要
申请公布号
DE69029797(D1)
申请公布日期
1997.03.06
申请号
DE19906029797
申请日期
1990.12.20
申请人
HEWLETT-PACKARD CO., PALO ALTO, CALIF., US
发明人
MARSHALL, DANIEL R., BOISE, IDAHO 93702, US
分类号
G02B7/28;G11B7/09;G11B7/13;G11B11/10;G11B11/105;(IPC1-7):G11B7/13
主分类号
G02B7/28
代理机构
代理人
主权项
地址
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