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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク John Dolbeer ： ウィキペディア英語版 John Dolbeer John Dolbeer (March 12, 1827 – August 17, 1902) was a partner in the Dolbeer & Carson Lumber Co., one of the early major Humboldt County, California lumber operations in based in Eureka. While in that business, he invented the logging engine, more commonly known as the steam donkey or donkey engine. This invaluable equipment, especially with regard to difficult terrain and very large trees, revolutionized 19th century logging so significantly that variations of the engine were still used well into the 20th Century. ==Early years== John Dolbeer was born in Epsom, Merrimack County, New Hampshire on March 12, 1827, the son of Nicholas Dolbeer and Esther Chase of New Rye. He left the family farm in 1850 at the age of 23 and set out to the California Gold Rush to make his fortune. 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「John Dolbeer」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.