US PATENT SUBCLASS 172 / 135
.~ One implement surrounds another


Current as of: June, 1999
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172 /   HD   EARTH WORKING

133  DF  DIVERSE TOOLS {29}
135.~ One implement surrounds another


DEFINITION

Classification: 172/135

(under subclass 133) Apparatus in which an implement has earth working portions which operate on all four sides of an implement having a diverse earth working element.

(1) Note. The surrounding implement may comprise a plurality of like separate tools.