Inventions and the Automobile

12345678910111213
Across
  1. 5. To notify by a signal.
  2. 6. Supplies or tools needed for a special purpose.
  3. 8. Develop slowly into a more complex form.
  4. 9. The act of accepting that something is true or important.
  5. 11. Capable of reflecting light, images, or sound waves.
  6. 12. To be insistent.
Down
  1. 1. Consisting of great numbers.
  2. 2. To obtain the exclusive rights to (an invention, process, etc.) by a patent.
  3. 3. An object, machine or piece of equipment that has been made for a special purpose.
  4. 4. Offering or expressing a choice.
  5. 7. To make or produce something in large amounts.
  6. 10. Having the shape of a sphere.
  7. 13. To guide the course of something in motion.