(under subclass 50) Subject matter utilized for cutting or disintegrating.
(1) Note. This subclass relates, for example, to the severing of a wire cable by passing a fusing current through a short section thereof, or to the etching of a monogram into the surface of the metal.
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19, for similar subject matter not having metallic workpieces as, for example, perforating of paper by sparks and machining of nonmetal by electron beams.
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175, Boring or Penetrating the Earth, 16, for an electrical heating process or device for forming a hole in the earth by directly applying heat to fluidize or comminute the material forming the earth.
205, Electrolysis: Processes, Compositions Used Therein and Methods of Preparing the Compositions,
640+, for electrolytic erosion of a workpiece to change the shape or surface configuration thereof.
