(under the class definition) Subject matter drawn to element structure for use with fasteners or fastener elements of this class and wherein either the element structure operates by inherent resilience of at least a portion of its structure or is in the form of a relatively short piece of wire having a semicircular cross section.
SEE OR SEARCH CLASS
301, Land Vehicles: Wheels and Axles,
111+, for fastener securing elements specially adapted for or
