Inventions

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Across
  1. 3. Thomas Edison's greatest invention
  2. 5. Wright brothers invented this flying device
  3. 7. This special code was named after its inventor
  4. 8. Gutenberg invented the ___ press
Down
  1. 1. Alexander Graham Bell's famous invention
  2. 2. Levi Strauss invented the blue ___
  3. 4. Blaise Pascal came up with this to simplify "calculations"
  4. 6. He is known for the Kodak Camera