Across
- 5. rapid growth in U.S. manufacturing in the late 1800s
- 6. first to implement the moving assembly line
- 7. an inventor interested in electricity
Down
- 1. inventor who patented the telephone
- 2. exclusive rights to make or sell inventions
- 3. last name of the brothers who built a lightweight airplane
- 4. a way to manufacture steel quickly and cheaply