Inventions Quizzes
Inventions Practice Test 62
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The MCQs: In which one of following year mechanical calculators were invented; "Calculators" App (Android, iOS) with answers: 1665; 1656; 1642; 1675; for online degree programs. Practice inventions and inventors questions and answers, Google eBook to download free sample for online degree programs.
In which one of the following year mechanical calculators were invented?
In which one of the following year, McIntosh apple was discovered?
Penicillin was invented by a Scottish bacteriologist named as
In which one of the following year, Toasters were patented?
Game Tennis were invented by
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