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When and who invented the Radio Telegraphy (Trans-Atlantic)?
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Who invented the Vaccination?
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Which company is ahead in Laser innovations?
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Nineteenth Laws of Planetary Motion
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When and who invented the Barbed Wire?
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Which company is ahead in Telescope (1st refracting) innovations?
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When and who invented the Zeppelin?
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Which company is ahead in Clock (mechanical) innovations?
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What year was Antiseptic invented and how?
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