| http://www.w3.org/ns/prov#value | - These objects, and other features and advantages of this invention will become readily apparent upon reference to the following description, when taken in conjunction with the accompanying drawings, wherein: FIG. 1 is a perspective view of an embodiment of this invention, with certain parts broken away for purposes of clarity; FIG. 2 is an enlarged fragmentary sectional view taken along the line 2
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