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LEGO 9747 Robotics Invention System, Version 1.5 Set Parts Inventory and Instructions - LEGO Reference Guide
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BrickLink - Set 3804-1 : LEGO Robotics Invention System, Version 2.0 [ Mindstorms:RCX] - BrickLink Reference Catalog
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LEGO 9747 Robotics Invention System, Version 1.5 Set Parts Inventory and Instructions - LEGO Reference Guide
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