Element e.g. tile, installing and leveling device, has rectangular or rounded base that is overhung by round or rectangular columns placed along and inside perimeter of base at center of stops of base

摘要

The device has a rectangular or rounded base that is overhung by round or rectangular columns placed along and inside the perimeter of the base at center of stops of the base. A plane surface lies above an assembly that is provided above three columns. An angle has a rectangular or tangential shape and lies on one of the columns. Two angles lie on two columns.