Black Inventors of Excellence

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Across
  1. 4. MAILBOX
  2. 6. TRAFFIC SIGNAL LIGHT
  3. 7. COMB
  4. 9. MOP
  5. 10. PRINTING PRESS
  6. 13. FILAMENT LIGHT BULB
  7. 14. HAIR CARE PRODUCTS MILLIONAIRE
  8. 17. ironing board
  9. 19. BLOOD BANK
  10. 20. TYPE-WRITING MACHINE
Down
  1. 1. PEN
  2. 2. ELEVATOR
  3. 3. HEART TRANSPLANT
  4. 5. CLOTHES DRYER
  5. 8. SHOE LASTING MACHINE
  6. 9. GEARSHIFT
  7. 11. REFRIGERATOR
  8. 12. BRUSH
  9. 15. PENCIL SHARPENER
  10. 16. DUSTPAN
  11. 18. LAWN MOWER