Talk:Wheel tractor-scraper

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I wish to Query fact that; LeTourneau invented the scraper. As the book on LeTourneau Earthmovers by EC Orlemann, (p11) indicates that LeTourneau adapted a standard towed scraper to form the first ONE-Man operated Pulled scraper by fitting motors to actuate the controls in place of the need for a driver to ride the scraper as was the normal operating method. Pulled scrappers had been around for years before then as a horse drawn implement. ref: 500years of Earth moving (P80) by Heinz-Herbert-Cohrs. He built the worlds 1st Electric self propelled scraper in 1923, from scrap and surplus parts. Ref: LeTourneau Earthmovers by EC Orlemann, (p13) BulldozerD11 (talk) 14:19, 14 April 2008 (UTC)