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发明名称
Screen saver
摘要
A screen saver provides that questions and answers are displayed to a user while in a foreground screen saver mode. Scores may be kept track of, and users may customize the database, or select different sets of data to use.
申请公布号
US5738527(A)
申请公布日期
1998.04.14
申请号
US19960694154
申请日期
1996.08.08
申请人
LUNDBERG, STEVEN W.
发明人
LUNDBERG, STEVEN W.
分类号
G09B7/02;G09B7/04;(IPC1-7):G09B3/00;G09B7/00
主分类号
G09B7/02
代理机构
代理人
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