Piano was invented by ________.1). John Barber2). Sir Henry Cole3). Josephine Cochrane4). Bartolomeo Cristofori
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1. Who invented Rocket?
2. Who invented Antibiotics?
3. Who discovered the colour photography?
4. Who Invented Electric Stove?
5. Who discovered Pluto?
6. Which of the following countries has decided to use the revenue collected from newly discovered oil field to make a Special Fund ?
7. Who Invented PlayStation?
8. Kaleidoscope was invented by ________.
9. Who Invented Ceiling fan?
10. Arithmometer was invented by
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