Across
- 4. invinted small box camera
- 6. invented the typewriter
- 7. makes first working lightbulb
- 9. makes a vacuum cleaner
- 10. developed a shoe making machine
Down
- 1. developed the telephone
- 2. take first flight
- 3. builds transformers
- 5. introduces Model T
- 8. invented a mechanism for oiling machinery