Inventor and Inventions by Noa and Victoria 671

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Across
  1. 4. Who invented the computer in 1936?
  2. 7. Who invented the microwave?
  3. 8. What did J Robert Oppenheimer create during the second World war?
  4. 12. The person who invented the clock in 1656
Down
  1. 1. An invention that you use about twice a day created in the 1850's
  2. 2. An useful object created in 1876
  3. 3. Who had the idea of the televison when he was 14 years old?
  4. 5. Something discovered by Benjamin Franklin
  5. 6. What was the last name of Alexander Graham bell assistant
  6. 9. An invention created in 1268 used by 7 persons in the class
  7. 10. Something invented by Karl Benz
  8. 11. Who invented the phonograph in 1877?