US PATENT SUBCLASS 299 / 1.4
.~ Of hard material disintegrating machines


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.~ Of hard material disintegrating machines {3}
1.5  DF  .~.~> Floor working
1.6  DF  .~.~> Sidewall working {1}
1.8  DF  .~.~> Of rotary cutter with advance direction coincident to rotary axis


DEFINITION

Classification: 299/1.4

Of hard material disintegrating machine:

(under subclass 1.05) Process or apparatus where power operated means drives or advances a cutting means.