361 / | HD | ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES |
212 | DF | DISCHARGING OR PREVENTING ACCUMULATION OF ELECTRIC CHARGE (E.G., STATIC ELECTRICITY) {5} |
216 | DF | .~ Structurally combined with building or vehicle {1} |
217 | DF | .~.~ With external structure of vehicle {2} |
219 | .~.~.~ Chain-type grounding means |