US PATENT SUBCLASS 460 / 2
.~ Foreign material

Current as of: June, 1999
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460 /   HD   CROP THRESHING OR SEPARATING

1  DF  MEANS RESPONSIVE TO A SENSED CONDITION {4}
2.~ Foreign material {1}
3  DF  .~.~> Drive interrupt

DEFINITION

Classification: 460/2

Foreign material:

(under subclass 1) Subject matter which detects the passage of objects such as stones, metal pieces etc., which would damage the machine.