Clue | Source | Date |
---|---|---|
Sound unhappy over figure in cooler | The Telegraph Toughie | 05 Oct 2023 |
Low-temperature apparatus | The Times Concise | 07 Oct 2022 |
Apparatus used to maintain a constant low temperature | The Times Specialist Sunday | 05 Dec 2021 |
Apparatus for maintaining low temperature level | The Times Concise | 26 Jul 2021 |
Apparatus for maintaining a very low temperature | The Telegraph General Knowledge | 13 Jan 2020 |