section 1,2,3

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Across
  1. 2. Created the telephone
  2. 7. is a company that controls most or all business in a particular industry
  3. 9. a document giving someone the sole right to make and sell an invention/product
  4. 10. to get rid of something
  5. 13. the system in which privately owned businesses compete freely
  6. 15. opened a settlement house in the slums
  7. 17. Make free from impurities
  8. 18. Is a manufacturing method in which a product is put together as it moves along a belt
  9. 19. tested a gas powered airplane at Kitty Hawk North Carolina
  10. 21. to give a good reason for an action
  11. 22. is the rapid growth of a city's population
  12. 23. place where people receive medical treatment often for free or for a small fee
  13. 24. Formed new unions
  14. 25. was a son of a peddler in new york
Down
  1. 1. buildings divided into tiny apartments
  2. 3. to increase speed
  3. 4. Created the first automobile
  4. 5. Unions negotiate management for workers as a group
  5. 6. to make different
  6. 8. is someone who sets up new Businesses in a particular industry
  7. 11. Business owned by many investors
  8. 12. "Invention factory"at melno park NJ bulb and hundreds more inventions
  9. 14. A poor Scottish immigrant
  10. 16. is a center offering to help the urban people
  11. 20. is a group of corporations run by a single board of directors