Across
- 3. Macmillan invented the...
- 6. Alexander Graham Bell invented the...
- 9. Blaise Pascal invented the...
- 10. Schuyler Wheeler invented the...
Down
- 1. Hans Lippershey invented the...
- 2. Vinton Cerf and Robert Kahn invented the...
- 4. Karl Benz invented the...
- 5. Charles Babbage invented the...
- 7. Wright Brothers invented the...
- 8. Marconi invented the...