(under subclass 681) Apparatus comprising a generally elongated earth working element having an earth working portion and a standard to support it in earth working position in which the earth working portion is no longer in lateral or longitudinal extent than the standard.
(1) Note. A disclosure of an enlarged lateral or longitudinal portion is enough to disqualify a patent for
classification under this definition regardless of the claimed subject matter.
SEE OR SEARCH THIS CLASS, SUBCLASS:
160, for laterally spaced like tools and an intermediate diverse tool at least one of which comprises a spike tooth.
173, for a smooth surface earth roller combined with earth working teeth.
198, for diverse tools following the same path, one of which comprises teeth. SEE OR SEARCH CLASS
56, Harvesters,
400, for a horse rake tooth.
111, Planting,
154, for a tooth- or tine-type furrow opener claimed in combination with a planting machine.
