361 / | HD | ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES |
212 | DF | DISCHARGING OR PREVENTING ACCUMULATION OF ELECTRIC CHARGE (E.G., STATIC ELECTRICITY) {5} |
220 | DF | .~ Specific conduction means or dissipator {3} |
223 | .~.~ Shoe type {1} | |
224 | DF | .~.~.~> Integral with shoe |