US PATENT SUBCLASS 299 / 1.6
.~.~ Sidewall working


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

1.05  DF  AUTOMATIC CONTROL; SIGNALING OR INDICATING {4}
1.4  DF  .~ Of hard material disintegrating machines {3}
1.6.~.~ Sidewall working {1}
1.7  DF  .~.~.~> Of advancing material handling means or roof support


DEFINITION

Classification: 299/1.6

Sidewall working:

(under subclass 1.4) Process or apparatus in which the cutter breaks up material which forms a substantially vertical wall as the cutter advances parallel to the wall.