US PATENT SUBCLASS 299 / 84.1
.~.~ Nontracking tooth arrangement

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}
82.1  DF  .~ Endless-chain type head {2}
84.1.~.~ Nontracking tooth arrangement

DEFINITION

Classification: 299/84.1

Nontracking tooth arrangement:

(under subclass 82.1) Endless-chain type head in which the elements carried by the flexible member are such that one element will describe a different path of travel than another element.