| 摘要 |
The invention relates to a length measuring device. The device comprises a slidably arranged measurement carriage in which there are arranged a slidable measurement sleeve provided with a scale, and a measuring head. A second measuring head, which scans the scale, is provided in a way such that it can be locked in its position on the measuring unit and is arranged on a holder on the axis of the measuring sleeve, which holder projects through the measuring carriage. <IMAGE>
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