US PATENT SUBCLASS 454 / 68
ELEVATOR
Current as of: June, 1999
Click HD for Main Headings
Click for All Classes
DEFINITION
Classification: 454/68
ELEVATOR:
(under the class definition) Subject matter comprising features peculiar to admitting air to, exhausting air from, or circulating air about a (ventilated) space in a device vertically raised and lowered to transport passengers, goods, or equipment.
SEE OR SEARCH CLASS
187, Elevator, Industrial Lift Truck, or Stationary Lift for Vehicle, appropriate subclasses for particular elevator structure.
