(under subclass 283) Structures which have only four vertical sides, two of which are opposite each other and permit access to the contents of the structure. The four vertical sides may each be irregular in vertical section.
SEE OR SEARCH THIS CLASS, SUBCLASS:
285, for four sided cabinets which are accessible from all four vertical sides.
286, for cabinets having at least one compartment, shelf, etc., which can be withdrawn from one side, rehoused and then withdrawn from the opposite side.
