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Who invented the Margarine?
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Who invented the Classification of Data for Libraries?
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When and who invented the Night Club?
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Who invented the Launderette?
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Which company is ahead in Stethoscope innovations?
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Who invented the Cadmium?
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What year was Printing (Rotary) invented and how?
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Who invented the Refrigerator?
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Which company is ahead in Tank (military) innovations?
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What year was Cash Register invented and how?
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Which company is ahead in Locomotive innovations?
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What year was Stirrups (metal) invented and how?
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Which company is ahead in Argon innovations?
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What year was Gas Lighting invented and how?
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When and who invented the Electric Generation (Static)?
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Who invented the Stirrups (metal)?
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Which company is ahead in Streetcar (railed) innovations?
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Who invented the Fountain Pen?
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What year was Arc Lamp invented and how?
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