(under the class definition) Subject matter for shearing, splitting, or punching of stone by the application of opposing forces to different portions of an integral stone.
SEE OR SEARCH CLASS
225, Severing by Tearing or Breaking,
93+, for breaking or tearing apparatus.
241, Solid Material Comminution or Disintegration,
4, which includes physical steps of separation of the laminations of materials (such as mica) when combined with the comminuting or disintegrating step.
