(under the class definition) Apparatus for making a hole through preshaped glass when in a soft stage, or the combination of glass working means combined with mechanical drilling or boring means for hard glass.
SEE OR SEARCH THIS CLASS, SUBCLASS:
56, for a process of bonding glass to a preformed part combined with the step of cutting, perforating or breaking of glass.
105, for a process of reshaping a glass preform combined with cutting, severing or perforating.
112, for a process of severing or perforating a glass preform by a glass working operation.
315, for a press molding means with a core withdrawing means.
SEE OR SEARCH CLASS 408, Cutting by Use of Rotating Axially Moving Tool, appropriate subclasses for a single operation of that class on hard glass, and see the "Search Notes" under the class definition.
