| 摘要 |
Angle-measurement device. Angle-measurement device which can be used for measuring any angles with respect to a horizontal axis, characterised in that it comprises a horizontal level 1, an angle measurement scale A calibrated from 0 DEG to 90 DEG on either side of a central axis B. Mobile needles 2 and 3 which move and mark the degrees. Angle-measurement device according to Claim 1, characterised in that the level is integral with the axis B and cannot move, only the needles being mobile. <IMAGE> |
