EntityQ584082· pop 40· linked from 59 articlesdumpy levelSign in to saveoptical instrument used to establish or check points in the same horizontal planeConnectionsspirit levelEntitylevel staffEntityInternational Standard Book NumberEntityconstructionEntityDoverEntitybarcodeEntityazimuthEntityprismEntityaltitudeEntitytheodoliteEntitysurveyingEntityOberkochenEntitytotal stationEntityCarl Zeiss AGEntityoptical telescopeEntityoptical instrumentEntityalidadeEntityrotation around a fixed axisEntityWorld of Warcraft: CataclysmEntitybenchmarkEntityCategoriesBritish inventionsConstruction surveyingOptical instrumentsSurveying instrumentsVertical position