(under subclass 89) Closures for pipes of the inflation stem type comprising an air cap which closes the end of the pipe and a dust cap which shrouds the air cap and a portion of the pipe.
SEE OR SEARCH CLASS
137, Fluid Handling,
232+, for inflation stems combined with cap or closure for protecting and/or sealing the end thereof.
152, Resilient Tires and Wheels,
428, for one or both of the caps combined with the inflation stem and the attachment to the wheel, rim, felly, or tire.
