US PATENT SUBCLASS 111 / 152
.~.~ Shoe opener

Current as of: June, 1999
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111 /   HD   PLANTING

14  DF  DRILLING {12}
149  DF  .~ Furrow opener {7}
152.~.~ Shoe opener

DEFINITION

Classification: 111/152

Shoe opener:

(under subclass 149) Apparatus wherein the opening element is

symmetrically arranged with respect to the line of draft, has an earth- breaking portion, has wing portions extending laterally beyond the sides thereof which form a V-shape when viewed in plan or front elevation, and has a portion extending upwardly from the central portion of the V for attachment to a standard.

SEE OR SEARCH THIS CLASS, SUBCLASS:

124, for a shoe-type opener used with a seed depositor.

SEE OR SEARCH CLASS

172, Earth Working,

724, and 730 for shoe-type openers, per se.