quadrants (measuring devices)

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  4. Furnishings and Equipment (hierarchy name)
  5. Measuring Devices (hierarchy name)
  6. measuring devices (instruments)
  7. [measuring devices for extent]
  8. distance measuring devices
  9. angle measuring devices
  10. vertical angle measuring devices
  11. quadrants
Scope note
Instruments for measuring altitudes, usually consisting of a graduated arc of 90 degrees, a pair of sights, and a plumb bob.
Accepted term: 27-May-2024