(under subclass 283) Structures which are accessible (1) from all vertical sides, (2) from the entire perimeter, or (3) from less than all vertical sides, or the entire perimeter, provided that the directions from which the structures are accessible are at least equivalent either to the three directions from which a structure, triangular in cross-section, would be accessible under (1), or to the four directions from which a structure, rectangular in cross-section, would be accessible under (1).
SEE OR SEARCH THIS CLASS, SUBCLASS:
249.2+, for housings rotatable on fixed supports and having an opening in one sidewall, the rotation of the housing permitting access to its contents from all sides of the support.
SEE OR SEARCH CLASS
211, Supports: Racks,
126.1+, for tiers of trays which are accessible from all vertical sides.
