US PATENT SUBCLASS 175 / 413
.~.~ Independently attachable

Current as of: June, 1999
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175 /   HD   BORING OR PENETRATING THE EARTH

327  DF  BIT OR BIT ELEMENT {21}
412  DF  .~ Plural separable cutter elements {1}
413.~.~ Independently attachable

DEFINITION

Classification: 175/413

(under subclass 412) Apparatus in which each cutter element can be separately attached or detached from the bit head without attaching or detaching the other elements.

SEE OR SEARCH THIS CLASS, SUBCLASS:

331+, for plural separable rolling cutter elements in which the rolling cutters are independently attachable.

SEE OR SEARCH CLASS

37, Excavating,

446+, for cutting edges attachable to an excavating scoop.