| Clue | Source | Date |
|---|---|---|
| *Emergency exit safety feature | Universal | 10 Apr 2025 |
| Emergency exit feature | New York Times | 22 Aug 2020 |
| Something pressed in an emergency | New York Times | 19 Jul 2020 |
| Door part often fitted with an alarm | New York Times | 16 Sep 2017 |
| Emergency exit device | LA Times Daily | 01 Apr 2017 |
| Emergency exit device | The Washington Post | 01 Apr 2017 |
| Door part often fitted with an alarm | ||
| Emergency exit device | ||
| Emergency exit device | Wall Street Journal | 29 Jan 2016 |
| Emergency exit feature | ||
| Emergency exit feature |