Inventions Quizzes
Inventions Practice Test 140
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The MCQs: Artificial heart machine was discovered by; "Artificial Heart" App Download (iOS & Android) with answers sir willem kloff, sir louis braille, sir tom kurtz and sir richard morris hunt for online school classes. Practice inventions and inventors questions and answers, Google eBook to download free sample for online education.
MCQ 696: Artificial heart machine was discovered by
MCQ 697: In which one of the following year newsprint was invented?
MCQ 698: The first rapid fire firearm, Gatling gun was invented in
MCQ 699: Electroplating was invented in
MCQ 700: In which one of the following year, the variable pitch aircraft propeller was invented?
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