What piece of clothing was invented by French fashion designer Louis Reard in 1946?
Answer: C
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Who Invented Elevator Safety Brake ?
Answer: B
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Earliest version of Cathode Ray Tube which used cold cathode diode was invented by German Physicist is
Answer: A
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This statesman,politican,scholar,inventor,and one of early presidents of USA invented the swivel chair,the spherical sundial,the moldboard plow,and the cipher wheel.
Answer: D
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It travels over land and water. Who invented the HOVERCRAFT?
Answer: D
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Nancy Johnson invented hand-cranked ice cream churn in
Answer: A
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the name of the CalTech seismologist who invented the scale used to measure the magnitude of earthquakes is?
Answer: A
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Internet (initially "ARPAnet")-
Answer: C
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First regenerative circuit was invented and patented in 1914 by
Answer: D
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The first effective vaccine against polio was prepared by ?
Answer: D
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