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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 Mathew Evans ： ウィキペディア英語版 Mathew Evans Mathew Evans is one of two Canadians who developed and patented an incandescent light bulb, on July 24, 1874, five years before Thomas Alva Edison's U.S. patent on the device. Evans, from Toronto, Ontario, and his friend Henry Woodward, made the light bulb by sending electricity through a filament made of carbon. The two men had patented it but did not have enough money to develop their invention, so they sold their US patent 181,613 to Thomas Edison for US$5,000 ($US 100,000 in 2006 dollars). They also granted Edison an exclusive licence to their equivalent Canadian patent. ==External links== * (The First Electric Light Bulb ) 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「Mathew Evans」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.