(under the class definition) Structure including means forming the uppermost exposed surfacing of a building and having features peculiar to such use, e.g., a ridge, arch, coping, inclined rafter, etc., combined with a ceiling construction which is openly spaced from said means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
275+, for a construction of laterally related modules which form an intersection.
479+, for a construction of face to face barrier sections spaced by an internal frame or shaft.