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Robert G. Le Tourneau Signed 4 x 5 Photo 1960s Autographed Inventor Earthmoving
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1943 German Physicist Max Planck Mentions WWII Destruction
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Robert G. Le Tourneau Signed 8 x 10 Photo 1960s Autographed Inventor Earthmoving
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Tinkerlab: A Hands-On Guide for Little Inventors - Paperback - GOOD
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Thomas Edison: The Great American Inventor; - paperback, 081203922X, Louise Egan
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"Civil Engineer" Waldo E Smith Hand Written Letter Dated 1973
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