| http://www.w3.org/ns/prov#value | - A leveling device has a housing, a support surface which is fixed with the housing, an adjusting device including at least one adjusting screw which is displaceable outwardly and has an adjusting thread which is engageable with a counter thread for adjusting the adjusting screw, the counter thread being formed as a partially side of a slider which is displaceable transversely to a longitudinal axi
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