US PATENT SUBCLASS 299 / 105
.~ Wear resistant feature for tool body (e.g., hard facing)

Current as of: June, 1999
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299 /   HD   MINING OR IN SITU DISINTEGRATION OF HARD MATERIAL

79.1  DF  CUTTER TOOTH OR TOOTH HEAD {17}
105.~ Wear resistant feature for tool body (e.g., hard facing)

DEFINITION

Classification: 299/105

Wear resistant feature for tool body (e.g., hard facing):

(under subclass 79.1) Cutter tooth or tooth head including a material; e.g., tungsten carbide, placed on the element or supporting means or both in order to abrade or erode before the element or supporting means due to the higher hardness.