(under the class definition) Apparatus in which a means is provided (1) to return earth only into the space formerly occupied by the recovered object, or (2) to engage the earth adjacent the location of the object being recovered to retain said earth in place as the object is withdrawn from the soil.
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4, for apparatus used for rolling the earth or plants which apparatus may incidently fill up voids left after a plant is unearthed.
6, for earth-moving means which follow an unearthing means for buried objects and which may incidently fill in a void in the earth formerly occupied by said buried object.
