Clue: Known to be in working order
We have 1 possible answer for the clue Known to be in working order which appears 1 time in our database.
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Related Clues:
- Quizzed
- Tried out
- Put under pressure
- Assayed
- Proven in trials
- Put through a trial
- Tried-and-true
- In repose
- Took for a trial run
- Challenged, or what the theme entries in this puzzle should be
- Took out for a spin
- Stuck a toe in
- Worked on in the lab
- Pushed to the limit
- Subjected to examination or trial