Folding extendable ruler having numbering on one side that begins on the top side of the free end of the first lower element of the stack of elements

摘要

Folding extendable ruler, has a multiplicity of ruler elements (2, 21) that are joined together in a stack and have a scale (22) on at least one side. The numbers on the scale are arranged so that they begin on the top side of the free end of the first lower element of the stack. Optimally numbering of a scale on the other side of the ruler can be in accordance with conventional extendable rulers.