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LEGO 9747 Robotics Invention System, Version 1.5 Set Parts Inventory and Instructions - LEGO Reference Guide
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LEGO Mindstorms Robotics Invention System Set 1.5 9747 CD-ROM (Windows PC) : LEGO : Free Download, Borrow, and Streaming : Internet Archive
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BrickLink - Set 9747-1 : LEGO Robotics Invention System, Version 1.5 [MINDSTORMS:RCX] - BrickLink Reference Catalog
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BrickLink - Set 9747-1 : LEGO Robotics Invention System, Version 1.5 [MINDSTORMS:RCX] - BrickLink Reference Catalog
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