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William P. Bettendorf : ウィキペディア英語版 | William P. Bettendorf
William P. Bettendorf (July 1, 1857 – June 3, 1910) was a German-American inventor. He is credited with the invention of the power lift sulky plow, the Bettendorf metal wheel and the one-piece railroad truck frame. By the age of 53 he held 94 patents. With his younger brother, Joseph W. Bettendorf, he founded the Bettendorf Axle Company. His first wife and children preceded him in death. He died as the company was rapidly expanding and before he moved into a palatial home he was building. The city of Bettendorf, Iowa is named after the two brothers. ==Biography==
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「William P. Bettendorf」の詳細全文を読む
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