US PATENT SUBCLASS 299 / 75
.~.~ Shiftable vertically

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}
73  DF  .~ Cutter shiftable horizontally {2}
75.~.~ Shiftable vertically

DEFINITION

Classification: 299/75

(under subclass 73) Apparatus in which the cutter is connected to the supporting structure in such a manner that the cutter may be swung or otherwise shifted as a unit relative to said supporting structure in a substantially vertical direction as well as in a horizontal direction.