7th hour

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Across
  1. 2. "took" jobs away from Americans
  2. 3. richest man in the world
  3. 5. mass production
  4. 8. giant company's
  5. 9. construction boomed
  6. 10. board of trustees
Down
  1. 1. lighter steel
  2. 4. standard oil company
  3. 6. American finance
  4. 7. greatest inventor in the 1800's