Black Inventors

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Across
  1. 3. - Super soaker water gun inventor.
  2. 4. - Movie projector technology innovator.
  3. 5. - Traffic light synchronization system.
  4. 7. - Improved lightbulb filament technology.
  5. 8. - Automatic lubrication system creator.
  6. 9. - Sugar refining evaporator pioneer.
  7. 10. - Fire extinguisher automatic sprinkler system.
  8. 13. - Haircare and beauty products entrepreneur.
Down
  1. 1. - Inventive educator and scientist.
  2. 2. - Mobile refrigeration unit creator.
  3. 5. - Agricultural scientist and inventor.
  4. 6. - Portable hairdryer innovator.
  5. 10. - Traffic signal and gas mask innovator.
  6. 11. - Improved modern dry cleaning process.
  7. 12. - Gas mask with a breathing apparatus.