Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Brian I. Marcus0
Warren S. Heit0
Date of Patent
May 23, 2006
0Patent Application Number
091271120
Date Filed
July 31, 1998
0Patent Citations Received
Patent Primary Examiner
Patent abstract
A system where a child or other individual arranges one or more computer-recognizable characters on a working platform to spell words or provide a mathematical result in response to computer generated questions or prompts, the system then indicating whether the words or mathematical result is correct.
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