US PATENT SUBCLASS 408 / 235
.~ With counterweight mechanism

Current as of: June, 1999
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408 /   HD   CUTTING BY USE OF ROTATING AXIALLY MOVING TOOL

234  DF  MACHINE FRAME {2}
235.~ With counterweight mechanism

DEFINITION

Classification: 408/235

(under subclass 234) Device including weights and suspension apparatus for counter-balancing the weight of the tool and vertically-moving tool-sustaining structure.