General Knowledge :: Inventions
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Who had an explosive idea and first patented DYNAMITE?
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Who invented the Spinning Jenny?
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Which insurance salesman invented the fountain pen in 1884?
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What charge card, developed in 1950, was the first to be accepted nationally in the US?
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Which of the following was first patented by an Australian in 1889?
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Who among the following invented the small pox vaccine?
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What George Westinghouse invented?
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Who is the only U.S. President to invent and patent something?
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