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https://www.catholic.com/encyclopedia/jean-pierre-minkelers Jean-Pierre Minkelers | Catholic Answers Encyclopedia Minkelers, JEAN-PIERRE, inventor of illuminating gas; b. at Maastricht, Holland, 1748; d. there July 4, 1824. At the age of sixteen, in 1764, he went to... jean pierre minkelerscatholic answersencyclopedia