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Gas and Petroleum Engines

H. de (Henry) Graffigny · Athol Garnet Elliott

FormatEbook
Published2019
LanguageEnglish
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H. de (Henry) Graffigny

H. de (Henry) Graffigny was a French author active in the late 19th and early 20th centuries who wrote popular science and science-fiction works. He is best known for his prolific output popularizing science and technology for general readers.

Biography written by AI from public biographical facts.

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