.~.~ Step or abutment ascending/desending type vehicle
DEFINITION
Classification: 180/8.2
Step or abutment ascending/descending type vehicle:
(under subclass 8.1) Motor vehicle wherein the mechanical legs are used to propel the vehicle up or down steps or abutments (e.g., stair climber).
(1) Note. Vehicles to be placed in this subclass must have legs that engage the step or abutment by intermittent action. Legs on wheels which form spiders will be found in this subclass.
SEE OR SEARCH THIS CLASS, SUBCLASS:
9.22, for motor driven stair climbers employing only an endless tread.
