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Heinrich Göbel, later Henry Goebel (April 20, 1818 – December 4, 1893), born in Springe, Germany, was a precision mechanic and inventor. In 1848 he emigrated to New York City, where he resided until his death. He received American citizenship in 1865. In 1893, magazines and newspapers reported 25 years earlier, Göbel had developed incandescent light bulbs comparable to those invented in 1879 by Thomas Alva Edison. Göbel did not apply for a patent. In 1893, the Edison Electric Light Company sued three manufacturers of incandescent lamps for infringing Edison´s patent. The defense of these companies claimed the Edison patent was void because of the same invention by Göbel 25 years earlier, which came to be known as the "Göbel defense". Judges of four courts raised doubts; there was no clear and convincing proof for the claimed invention. A research work published in 2007 concluded that the ''Goebel-Defense'' was fraudulent.〔Hans-Christian Rohde: ''Die Göbel-Legende – Der Kampf um die Erfindung der Glühlampe.'' Zu Klampen, Springe 2007, ISBN 978-3-86674-006-8〕 After the death Göbel, in some countries, the legend arose he was the true inventor of the practical incandescent light bulb. ==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「Heinrich Göbel」の詳細全文を読む スポンサード リンク
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