| http://www.w3.org/ns/prov#value | - In embodiments such as the one illustrated in FIG. 8 in which the pusher block can traverse substantially the entire length of the product track 70, a spacing member 140 may be positioned forward of the pusher block 112 along the product track 70 such that the forward motion of the pusher block 112 may be limited as shown in FIG. 3.
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