Across
- 1. complete failure
- 4. machine that plays recorded sound
- 5. worked in a rough, uneven way
- 7. having circular ends and straight sides
- 8. move slowly and noisily
- 9. legal documents that make it so no one else can sell your invention
Down
- 2. engines that make a train go forward
- 3. specialized machines or electronic devices
- 6. something that gives off light