361 / | HD | ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES |
212 | DF | DISCHARGING OR PREVENTING ACCUMULATION OF ELECTRIC CHARGE (E.G., STATIC ELECTRICITY) {5} |
220 | .~ Specific conduction means or dissipator {3} | |
221 | DF | .~.~> Brush- or roller-type structure |
222 | DF | .~.~> Rod-type structure |
223 | DF | .~.~> Shoe type {1} |