US PATENT SUBCLASS 171 / 8
DRIVE TRIGGERED BY DESIRED OBJECT


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

8DRIVE TRIGGERED BY DESIRED OBJECT


DEFINITION

Classification: 171/8

(under the class definition) Apparatus having a means to unearth a plant or buried object and including a sensing means actuated by said plant or object either before or after it is unearthed and a means which is responsive to actuation of said plant or object sensing means to drive a portion of said apparatus.

SEE OR SEARCH CLASS

172, Earth Working,

5+, for earth-working apparatus comprising automatic power-control means and means sensing an obstruction such as a plant.