(under subclass 552) Devices comprising hand operated rounded or wheel-shaped members adapted for attachment to a rotary shaft.
SEE OR SEARCH CLASS
16, Miscellaneous Hardware,
121, for knobs.
264, Plastic and Nonmetallic Article Shaping or Treating: Processes, appropriate subclasses for molding or shaping processes within the class definition which may include molding and uniting.
292, Closure Fasteners,
347, for door knobs. 403, Joints and Connections,
230+, for a rod connected transversely to a plate.
