Across
- 3. Peter Henlein
- 5. Nicéphore Niépce
- 7. Alexander Graham Bell
- 9. Wright Brothers
- 13. Guglielmo Marconi
- 14. John Logie Baird
- 16. Oliver Evans
- 18. Samuel Morse
- 20. Christopher Latham Sholes
- 21. Ralph Baer
- 22. William Cullen
- 25. Willis Carrier
- 26. Charles Babbage
- 27. Thomas Elwa Edison
- 28. Karl Benz
- 30. Rene Laennec
Down
- 1. Chester Carlson
- 2. Thomas Newcomen
- 4. Gary Starkweather
- 6. Alfred B. Nobel
- 8. Carl Wilhelm Scheele
- 10. Philip Diehl
- 11. Percy Spencer
- 12. Martin Cooper
- 15. Elisha Otis
- 17. Benjamin Franklin
- 19. Galileo Galilei
- 22. Charles Richter
- 23. Isaac Newton
- 24. Elias Howe
- 29. Zacharis Janssen