Revolutionary Inventions

1234
Across
  1. 1. Efficient harvesting machine that combines all the steps of previous ones invented by Cyrus Hall McCormick
  2. 3. Mode of transportation that revolutionized transport of humans and goods, invented by Robert Fulton in 1807
  3. 4. Machine that sped up the time it takes to make clothes, invented by Elias Howe
Down
  1. 2. Machine that separates cotton from it's seed invented by Eli Whitney