Across
- 4. the man who was invented the safety glass.
- 5. the year when the Mother's day became official.
- 7. It was the first company that introduce a virtual assistant
Down
- 1. The teen who created the project called "Purification and Preliminary"
- 2. The invention that Ethan Zuckerman invented
- 3. It is a project that you can move safely delicate transport.
- 6. The year when the 3D printing began.