Across
- 1. First animal to use it?
- 4. Last name of who invented it?
- 6. Invented the machine?
- 7. How many cows can it milk in an hour?
Down
- 1. What is a big factor in maintaining it?
- 2. Extracts this from the animal?
- 3. How many phases are there?
- 5. The real name for the machines?