Calculators Quiz App Download - Inventions PDF e-Book
Inventions Practice Test 49
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The Quiz: First mechanical calculator was invented by "Calculators" App Download [Free] with answers: sir blaise pascal, sir robert noyce, sir thomas edison, and dr raymond lemieux for online school and college. Solve inventions and inventors questions and answers, Amazon e-Book to download free sample for free online courses.
The first mechanical calculator was invented by
Invention of piano is credited to
In which one of the following places an electric wheelchair was invented?
The 3 D map-making system was invented by
Lawn sprinkler was invented by
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