Famous British Inventions

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Across
  1. 8. — Railway engine
  2. 11. — Underwater vessel
  3. 13. — Postal invention
  4. 15. — Rotating power device
  5. 16. — Small object viewer
  6. 18. — Aircraft power unit
  7. 20. — Electric light source
Down
  1. 1. — Early power machine
  2. 2. — Two wheel transport
  3. 3. — Image capturing device
  4. 4. — First antibiotic
  5. 5. — Moving picture screen
  6. 6. — Textile machine
  7. 7. — Voice communication device
  8. 9. — Armored vehicle
  9. 10. — Object detection system
  10. 12. — Energy storage unit
  11. 14. — Direction finder
  12. 17. — Timekeeping device
  13. 19. — Early message system