.~.~> With separate vertically spaced earth working portion attached to same standard
DEFINITION
Classification: 172/699
(under subclass 681) Apparatus comprising an earth working element 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 draft.
SEE OR SEARCH THIS CLASS, SUBCLASS:
19+, for sod cutters having a horizontal blade for cutting below the surface of the soil.
196, for subsoilers combined with a diverse-type tool, usually a moldboard plow.
720, for subsurface blades for cutting below the surface of the soil without displacing the soil laterally.
SEE OR SEARCH CLASS
37, Excavating, 370, for mole plows for forming a defined opening or passage below the surface of the soil, e.g., for drainage.
111, Planting,
123, for a chisel type furrow opener claimed in combination with liquid or gas soil treatment; and subclass 156 for a chisel opener claimed in combination with a planting machine.
