US PATENT SUBCLASS 111 / 149
.~ Furrow opener

Current as of: June, 1999
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111 /   HD   PLANTING

14  DF  DRILLING {12}
149.~ Furrow opener {7}
150  DF  .~.~> Including dispensed material deflector
151  DF  .~.~> Including trip mechanism
152  DF  .~.~> Shoe opener
153  DF  .~.~> Runner opener
154  DF  .~.~> Boot opener (e.g., tooth or tine) {1}
156  DF  .~.~> Chisel opener
157  DF  .~.~> Rotary opener {2}

DEFINITION

Classification: 111/149

Furrow opener:

(under subclass 14) Apparatus wherein significance is attributed to a device adapted to be drawn through the soil

to open a long, shallow, narrow trench therein.

SEE OR SEARCH THIS CLASS, SUBCLASS:

107+, for manually-operated furrow openers used with plant setting machines.

109+, for furrow openers used with plant setting machines.

120+, for drilling machines including liquid or gas soil treatment.