Famous American Inventions--Rodgers VVHS

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Across
  1. 2. Thomas Edison did not invent the first __, only the incandescent one
  2. 4. telegraph cable that stretched across the Atlantic and connected the US and Europe
  3. 5. inventor of the telegraph
  4. 7. first to use radio waves to communicate over air space Guglielmo ____
  5. 8. perhaps the most significant of all of Alexander Graham Bell's inventions
  6. 9. the process used to mass produce steel was the ___ process
  7. 11. inventor of modern air conditioning
  8. 13. first to use assembly line technique to make affordable cars
Down
  1. 1. inventor of the elevator
  2. 3. created the first practical, successful commercial sewing machine
  3. 6. considered the "father of the American factory system"
  4. 10. commercial refrigeration in the US is considered to have been created by Alexander ___
  5. 12. camera and photography company founded by inventor George Eastman