Inventions Practice Tests
Inventions Online Tests
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The MCQ: Mouse pad was invented by; "Mouse Pad" App Download (Free) with answers: Sir Douglas Engelbart; Sir Stephen Poplawski; Sir Raymond Damadian; Sir Alexander Cartwright; for online elementary school classes. Solve Inventions and Inventors Quiz Questions, download Apple eBook (Free Sample) for school certificate.
In which one of the following country, mouse pad was patented?
Mouse pad was invented by
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