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Which company is ahead in Microscope innovations?
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Which company is ahead in Stethoscope innovations?
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Which company is ahead in Vaccination innovations?
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Who invented the Wheel?
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What year was Microscope invented and how?
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What year was Vaccination invented and how?
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What year was Photography (on film) invented and how?
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Which company is ahead in Tank (military) innovations?
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When and who invented the Electric Fan?
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When and who invented the Ziggurats?
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Who invented the Antiseptic?
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