US PATENT SUBCLASS 37 / 189
ROTARY DIGGER
Current as of: June, 1999
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DEFINITION
Classification: 37/189
(under the class definition) General miscellaneous subclass with the rotary excavators.
(1) Note. Compare this class, subclasses 209+, 238, 242+, 244+, 326+, 350+, 351, 355, and 357.
(2) Note. Compare Class 198, Conveyors: Power-Driven, subclass 9.
SEE OR SEARCH CLASS
175, Boring or Penetrating the Earth, appropriate subclasses for a rotary tool for boring into the earth and particularly
327+, for a rotary type bit or bit element adapted for boring into the earth.
299, Mining or In Situ Disintegration of Hard Material, appropriate subclass, and particularly 101, and see the search notes therein for a rotary type cutter for mining or disintegrating hard material in situ.
