Escalation Line Black Inventors Puzzle

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Across
  1. 2. Evaporative Air COnditioner
  2. 10. Traffic Light
  3. 11. Home Security System
  4. 12. Folding Cabinet
  5. 13. Street Letter Box
  6. 14. Automatic Lubricating Device
Down
  1. 1. Improved Boiler System
  2. 3. Peanut Products
  3. 4. Improved Ironing Board
  4. 5. Automatic Elevator Doors
  5. 6. Induction Telegraph
  6. 7. Automatic Transmisison
  7. 8. Potato Chip
  8. 9. Hot Comb