52 / | HD | STATIC STRUCTURES (E.G., BUILDINGS) |
782.1 | DF | COMPOSITE PREFABRICATED PANEL INCLUDING ADJUNCTIVE MEANS {7} |
799.1 | .~ Perforate panel having separate attached, elongated edging or stiffener {1} | |
799.11 | DF | .~.~> Elongated, laterally spaced strips or strands {1} |