US PATENT SUBCLASS 111 / 147
.~ Including subsoiler (i.e., deep soil tiller)

Current as of: June, 1999
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111 /   HD   PLANTING

14  DF  DRILLING {12}
147.~ Including subsoiler (i.e., deep soil tiller) {1}
148  DF  .~.~> With furrow smoother

DEFINITION

Classification: 111/147

Including subsoiler (i.e., deep soil tiller):

(under subclass 14) Apparatus including a specific soil-penetrating device preceding the material-depositing means which enters and disturbs soil to a depth which exceeds the depth at which seeds are to be deposited.

(1) Note. The subsoiler may act as the primary furrow opener in combination with and ahead of such an opener.