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gptkb:Expo_1889
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Electric lighting
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gptkb:Thomas_A._De_Havilland
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de Havilland DH.177
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gptkb:Alfonso_Bialetti
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Moka pot patent
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gptkb:August_Wilhelm_von_Hofmann
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Hofmann's reaction with thiocyanates
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gptkb:Chicago_World's_Fair
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First public demonstration of the electric toothbrush
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gptkb:Radium-223
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patented
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gptkb:The_Player_Piano
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gptkb:George_E._H._Smith
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gptkb:Daguerreotype
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gptkb:Louis_Daguerre
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gptkb:Reed_Richards
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The Subatomic Particle Accelerator
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gptkb:Giovanni_Battista_Ferragamo
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Gancini buckle
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gptkb:first_practical_telephone
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174465
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gptkb:George_B._Airy
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Airy wave equation
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gptkb:Dmitry_Yemanov
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data integration solutions
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gptkb:Georges_Bréguet
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watch with a skeletonized function
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gptkb:Alcon_Laboratories
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Numerous
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gptkb:Rocketdyne_engines
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numerous patents filed
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gptkb:Sylvain_Walschaerts
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valve gear mechanism
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gptkb:Viktor_Mikhailovich_Glushko
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RD-0385 engine
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gptkb:Aryabhata
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method for calculating planetary positions
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gptkb:G._A._Bell
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gptkb:1968
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