| 摘要 |
A measuring device including a base on which is mounted, to pivot about a horizontal axis, between a high position and a low position, a first end of an articulated arm having a second end provided with a pointing member. A position locking device is mounted between the base and the first end, the position locking device comprising a pawl mounted so as to oppose movement of the arm toward the low position and connected to means for disengagement of the pawl.
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