Across
- 2. new idea, method or device
- 5. someone who takes risks to start new business
- 7. provided services to immigrants living in cities
- 9. place where experiments take place
- 11. act of competing for customers
- 12. products people make use or share
Down
- 1. an official document that gives an inventor the only right for their invention
- 3. one company has complete control over a certain market
- 4. streetcars that run on tracks
- 6. factory that turns oil into a more useful product
- 8. cleaning up streets, trash and sewage
- 10. a period of rapid economic growth