| Clue | Source | Date |
|---|---|---|
| Protective glass cases | Eugene Sheffer | 16 Jul 2020 |
| Vacuum-creating lab items | USA Today | 24 Jun 2019 |
| Vacuum-creating lab items | ||
| Inventor jolts lab containers | The Telegraph Cryptic | 16 Sep 2016 |
| Protective glass cases | ||
| They provide clear protection |