US PATENT SUBCLASS 30 / 308.3
.~.~ Detachable bit

Current as of: June, 1999
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30 /   HD   CUTLERY

165  DF  CUTTING TOOLS {19}
308.1  DF  .~ Hatchet, ax, or adze {2}
308.3.~.~ Detachable bit

DEFINITION

Classification: 30/308.3

Detachable bit:

(under subclass 308.1) Device wherein the cutting edge is designed to easily separate from the remainder of the head for purposes of replacement, sharpening, or the like.