Rakes which are propelled over the field by draft-animals.
SEE OR SEARCH THIS CLASS, SUBCLASS:
400.01+, for hand rakes.
SEE OR SEARCH CLASS
171, Unearthing Plants or Buried Objects,
19, for rakes which are combined with an unearthing device for the purpose of gathering the objects recovered by said unearthing device, and subclasses 84+ for soil working rakes which comb through a mass of earthy material and separate therefrom the desired objects contained therein.