| http://www.w3.org/ns/prov#value | - Another design would employ springs or other tension devices positioned in lateral orientation on the front 22 and the backstop 40, either integral to the plastic construction or in the form of attached wire springs, that would urge the two dividers 32 and 34 of one unit 20 to move closer to each other and would allow the dividers 32 and 34 to move apart and together across a range, for example, o
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