US PATENT SUBCLASS 171 / 81
.~ Shifting laterally

Current as of: June, 1999
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171 /   HD   UNEARTHING PLANTS OR BURIED OBJECTS

71  DF  PLOW OR BLADE CONTINGUOUS TO VIBRATING SEPARATOR {9}
81.~ Shifting laterally

DEFINITION

Classification: 171/81

(under subclass 71) Apparatus which include a separating surface which has a portion continuously moving horizontally along a line or direction which is generally perpendicular to the line of draft.