US PATENT SUBCLASS 37 / 446
DIGGING EDGE

Current as of: June, 1999
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37 /   HD   EXCAVATING

446DIGGING EDGE {7}
447  DF  .~> Oscillating or reciprocating
448  DF  .~> Corner guard (e.g., corner tooth)
449  DF  .~> Repositionable digging edge (e.g., reversible)
450  DF  .~> Removable digging edge having integral tooth adaptor
451  DF  .~> Distinct wear element mounted between teeth
452  DF  .~> Tooth or adaptor {3}
460  DF  .~> Specific material (e.g., specialty steel, heat treatment of material, specific hardness test)

DEFINITION

Classification: 37/446

DIGGING EDGE:

(under the class definition) Apparatus including a leading portion of a scoop, shovel, or other implement which cuts

into the material to be excavated or the attachment structure thereof. [figure] [caption]A - Bucket; B - Digging edge; C - Rear bracket wall; D - Bucket side walls; E - Mounting means

SEE OR SEARCH CLASS

172, Earth Working,

701.1+, wherein the earth working tool is a transversely elongated bulldozer blade.

175, Boring or Penetrating the Earth,

327, for an earth boring or penetrating bit or bit element.