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 | DF | .~.~ Shoe type {1} |
224 | .~.~.~ Integral with shoe |