Inventions Practice Tests
Inventions Online Tests
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The MCQ: Invention of electric drill is credited to; "Drill" App Download (Free) with answers sir james arnot, sir william blanc brain, sir don marcelino for virtual online school. Solve inventions and inventors quiz questions, download Google eBook (Free Sample) for virtual online school.
MCQ 1: The invention of electric drill is credited to
MCQ 2: Electric drill was patented in
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