| http://www.w3.org/ns/prov#value | - The height and angle of the work platform are adjustable.Various types of workbenches have been disclosed in U.S. Pat. No. 4,415,149 dated Nov. 15, 1923, entitled Portable workbench there is disclosed a portable workbench which includes a folding frame capable of being folded into a relativelysmall package for convenient transport, and into a work position where the working surface is horizontal.
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