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What year was Writing invented and how?
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Who invented the Variable Wing?
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Which company is ahead in Streetcar (electric) innovations?
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Which company is ahead in Launderette innovations?
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When and who invented the Airplane?
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Which company is ahead in Antiseptic innovations?
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Who invented the Tank (military)?
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Who invented the Chlorine?
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What year was Rubber (latex foam) invented and how?
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Which company is ahead in Airship (rigid) innovations?
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