US PATENT SUBCLASS 299 / 37.3
.~.~ Impact or hammering type cutter

Current as of: June, 1999
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299 /   HD   MINING OR IN SITU DISINTEGRATION OF HARD MATERIAL

29  DF  HARD MATERIAL DISINTEGRATING MACHINES {17}
36.1  DF  .~ Floor-working {3}
37.3.~.~ Impact or hammering type cutter {2}
37.4  DF  .~.~.~> Hydraulic piston and cylinder type
37.5  DF  .~.~.~> Hammer and anvil type

DEFINITION

Classification: 299/37.3

Impact or hammering-type cutter:

(under subclass 36.1) Floor working machine in which a falling weight, with appreciable striking velocity, hits the cutting means or is the cutting means.