US PATENT SUBCLASS 111 / 109
.~ Drilling machine (i.e., furrow opener)

Current as of: June, 1999
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111 /   HD   PLANTING

100  DF  PLANT SETTING {8}
109.~ Drilling machine (i.e., furrow opener) {3}
110  DF  .~.~> With irrigator
111  DF  .~.~> Runner opener
112  DF  .~.~> Rotating or orbiting opener {1}

DEFINITION

Classification: 111/109

Drilling machines (i.e., furrow opener):

(under subclass 100) Apparatus including a device adapted to be drawn through the soil to open a long, shallow, narrow trench therein and further including a depositing device which sets plants in the trench.

SEE OR SEARCH THIS CLASS, SUBCLASS:

14+, for drilling machines for seed planters.

120+, for drilling machines including liquid or gas soil treatment, but not used for plant setting.