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Certified Used Set 3804 Mindstorms Robotics Invention System 2.0
10 Cool Lego Mindstorm Robotics Invention System 2 Projects: Amazing Projects You Can Build in Under an Hour: Syngress: 9781931836616: Amazon.com: Books
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Certified Used Set 9719 Mindstorms Robotics Invention System - Version
Robotics Invention System, Version 1.5 : Set 9747-1 | BrickLink