| http://www.w3.org/ns/prov#value | - of each of the two legs including a depending step and block configuration; the slider member including an upper portion having a latch member that will releasably interact with the horizontal grooves on the vertical body, acentrally located, rearwardly extending ratchet that will releasably interact with an aperture provided in the upper section of the palate blade to provide hands free adjustin
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