US PATENT SUBCLASS 111 / 156
.~.~ Chisel opener

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


111 /   HD   PLANTING

14  DF  DRILLING {12}
149  DF  .~ Furrow opener {7}
156.~.~ Chisel opener

DEFINITION

Classification: 111/156

Chisel opener:

(under subclass 149) Apparatus wherein the opening element is specifically disclosed as working deep in the soil and having such a configuration that it merely lifts the soil and does not shift it laterally of the line of the furrow.

SEE OR SEARCH THIS CLASS, SUBCLASS:

123, for a chisel-type opener used with a liquid or gas soil treatment.

SEE OR SEARCH CLASS

172, Earth Working,

699+, for chisel-type openers, per se.