Across
- 4. created the wireless transmitter
- 6. this was Americas first big business
- 8. this person created the phone
- 9. this stimulated mass production.
- 10. he dominated the oil industry
Down
- 1. he dominated iron and steel companies
- 2. he dominated american finance
- 3. was the greatest inventor of the 1800s
- 5. united states had industrial revolution
- 7. this object led to skyscrapers