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Alphonse Beau de Rochas
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TECHNOLOGY
Alphonse Eugène Beau de Rochas was a French engineer. He was the first to patent the four-stroke engine in 1862, but he did not build one and the idea was subsequently developed by Nicolaus Otto and other engineers.[1]
Wikipedia contributors, "Alphonse Beau de Rochas," Wikipedia, The Free Encyclopedia,
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