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Inventions Competitive Exam MCQs – Mock Test 51
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Learn Phonograph Notes Questions and Answers PDF to master technology history. Download the Phonograph Quiz Answers PDF e-Book, Test 51 to learn inventions online courses. Practice Inventions and Inventors MCQ questions, Phonograph Multiple Choice Questions (MCQ) to enhance academic performance. Download the Phonograph Notes App: Free Inventions Study App to learn escalator, quartz clock, pendulum clock, phonograph test prep for invention virtual educational delivery.
Free Phonograph Notes App Download (iOS & Android): "Phonograph was patented in"; MCQ with answers: usa, america, spain, and italy. Study inventions and inventors questions and answers, Google e-Book to download free chapter to master technology history.
MCQ 251: The phonograph was patented in:
MCQ 252: Pendulum Clock was invented by a Dutch physicist named as:
MCQ 253: Quartz Clock was invented by:
MCQ 254: Escalator was discovered by:
MCQ 255: Sea plane was patented in:
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