280 / | HD | LAND VEHICLES |
29 | DF | WHEELED {21} |
727 | DF | .~ Attachment {22} |
728.1 | DF | .~.~ Inflatable passenger restraint or confinement (e.g., air bag) or attachment {12} |
734 | DF | .~.~.~ Responsive to vehicle condition {1} |
735 | .~.~.~.~ Electric control and/or sensor means |