US PATENT SUBCLASS 111 / 31
.~.~.~.~.~ Hill covering

Current as of: June, 1999
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111 /   HD   PLANTING

14  DF  DRILLING {12}
15  DF  .~ Hill-planting machines {5}
25  DF  .~.~ Depositing and marking mechanisms {3}
29  DF  .~.~.~ Driven marker {2}
30  DF  .~.~.~.~ Plunging {1}
31.~.~.~.~.~ Hill covering

DEFINITION

Classification: 111/31

(under subclass 30) Plunging marker is so timed and located as to act as a cover for the deposited material.