US PATENT SUBCLASS 299 / 39.6
.~.~.~.~ Height adjustment

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}
39.1  DF  .~.~ Rotary cutter {6}
39.4  DF  .~.~.~ Drum-type {4}
39.6.~.~.~.~ Height adjustment

DEFINITION

Classification: 299/39.6

Height adjustment:

(under subclass 39.4) Drum rotary cutter which is movable in a direction substantially perpendicular to the bottom surface.