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What year was Steel (rustless or stainless) invented and how?
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Which company is ahead in Autogiro innovations?
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What year was Nylon invented and how?
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When and who invented the Ziggurats?
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Who invented the Bunsen Burner?
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What year was Submarine invented and how?
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Who invented the Cash Register?
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What year was Rubber (vulcanised) invented and how?
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When and who invented the Pyramid?
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Which company is ahead in Argon innovations?
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When and who invented the Ballpoint Pen?
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Who invented the Argon?
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What year was Electromagnet invented and how?
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When and who invented the X-ray?
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Who invented the Uranium?
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What year was Cellophane invented and how?
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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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When and who invented the Slide Rule?
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What year was Automobile (gasoline) invented and how?
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Who invented the Classification of Data for Libraries?
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Who invented the Launderette?
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Who invented the Dacron?
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Who invented the Potter's Wheel?
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Who invented the Printing Press?
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