US PATENT SUBCLASS 111 / 138
.~.~.~.~.~ Sled frame

Current as of: June, 1999
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111 /   HD   PLANTING

14  DF  DRILLING {12}
52  DF  .~ Frame and planting-element arrangement {4}
59  DF  .~.~ Main and auxiliary frame {3}
62  DF  .~.~.~ Floating auxiliary {3}
134  DF  .~.~.~.~ Gauge means for auxiliary frame {2}
138.~.~.~.~.~ Sled frame

DEFINITION

Classification: 111/138

Sled frame:

(under subclass 134) Apparatus in which the gauging means comprises a pair of spaced parallel runners which slide over the surface of the soil, and an opening element is positioned between and supported by both runners.

SEE OR SEARCH CLASS

172, Earth Working,

393, for sled frames limited to working the earth.