(under the class definition) Clamp for holding the work, device for elevating and feeding the carriage, or a stop or gauge for locating a groove for receipt of a cooperating portion of another member, wherein it forms part of the machine structure.
(1) Note. A gauge which is a mere tool is classified as a measuring instrument.
SEE OR SEARCH CLASS
33, Geometrical Instruments, for a gauge which is a mere tool.