Racks specially adapted to carry barrels or articles of similar cylindrical shape.
SEE OR SEARCH CLASS
410, Freight Accommodation on Freight Carrier,
68, for a freight carrying vehicle having an integrally constructed rack for transporting bulk material containers; see, too, subclass(es) 31+, wherein such a rack is constructed to accommodate a group or article of some particular shape (e.g., regularly contoured, under subclasses 32+).