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2000May 28, 2002Donna L. SiemersPsycho-social game that measures emotional distance between players' responsesUS6425828Jan 24, 2001Jul 30, 2002Walker Digital, LlcDatabase driven online distributed tournament systemUS6435879 *May 4, 1999Aug 20, 2002Andreas UnsickerMethod and device for checking the correctness of answers to quiz questions over the media and in events, especially television and rad
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