US PATENT SUBCLASS 111 / 154
.~.~ Boot opener (e.g., tooth or tine)

Current as of: June, 1999
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111 /   HD   PLANTING

14  DF  DRILLING {12}
149  DF  .~ Furrow opener {7}
154.~.~ Boot opener (e.g., tooth or tine) {1}
155  DF  .~.~.~> Spring formed tool or standard

DEFINITION

Classification: 111/154

Boot opener (e.g., tooth or tine):

(under subclass 149) Apparatus having a generally elongated-furrow-opening element having a soil-working portion and a standard to support it in furrow opening position in which the soil working portion is no longer in lateral and longitudinal extent than the standard.

SEE OR SEARCH CLASS

172, Earth Working,

713, for boot-type furrow openers, per se.