Black History Innovators

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Across
  1. 2. made the laserphaco probe to remove cataracts
  2. 5. created the first folding chair
  3. 7. invented a wringing mop
  4. 9. patented the first ice cream scoop
  5. 13. created the first wooden clock
  6. 15. created refrigerated trucks
  7. 16. did research that led to fiber optics
  8. 18. patented the illusion transmitter used at NASA
  9. 19. holds 3 of IBM's PC patents
  10. 20. patented the lock
Down
  1. 1. developed 300 uses for peanuts
  2. 3. invented modern toilet
  3. 4. had the first mobile blood collecting unit
  4. 5. his first far ultraviolet camera is on the moon
  5. 6. created the first potato chip
  6. 8. patented the dry-scouring process
  7. 10. made a gas mask
  8. 11. made automatic closing elevator doors
  9. 12. invented a safer mailbox
  10. 14. invented the carbon filament for light bulbs
  11. 17. made wire precision resistors