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Inventions Competitive Exam MCQs – Mock Test 163
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Learn Toothbrush Notes Questions and Answers PDF to enhance invention learning. Download the Toothbrush Quiz Answers PDF e-Book, Test 163 to learn inventions online courses. Practice Inventions and Inventors MCQ questions, Toothbrush Multiple Choice Questions (MCQ) to master world inventions. Download the Toothbrush Notes App: Free Inventions Study App to learn tennis, mouse pad, baby buggy, toothbrush test prep for invention online educational access.
Free Toothbrush Study App Download (iOS & Android): In which one of the following year, toothbrush was patented?; MCQ with answers: 1723, 1780, 1765, and 1748. Study inventions and inventors questions and answers, Google e-Book to download free chapter to enhance invention learning.
MCQ 811: In which one of the following year, toothbrush was patented?
MCQ 812: Early stroller was developed by:
MCQ 813: In which one of the following country, mouse pad was patented?
MCQ 814: Sphairistike, which evolved into modern outdoor tennis was discovered by:
MCQ 815: In which country, chemical foam extinguisher was invented?
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