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Build a Better Mousetrap: Make Classic Inventions, Discover Your Problem-Solving Genius, and Take the Inventor's Challenge
Ruth Kassinger |
Young Adults > Young Adults |
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Ruth Kassinger is the author of Build a Better Mousetrap: Make Classic Inventions, Discover Your Problem-Solving Genius, and Take the Inventor's Challenge.
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Build a Better Mousetrap: Make Classic Inventions, Discover Your Problem-Solving Genius, and Take the Inventor's Challenge
Ruth Kassinger |
Young Adults > Young Adults |
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