(under the class definition) Apparatus which includes a plurality of unearthing units, each of which is capable of operating in the manner contemplated by the class definition as a complete entity and in which any one of the units may be used alone and then replaced by another in response to a manual control or in response to the occurrence of a given condition.
(1) Note. Mere plural exhuming units which are capable of separate vertical or lateral adjustment so that either or both may be in operation at one time, and plural successive units which, in turn, each pass over the same area to be harvested have been excluded and have been classified elsewhere in this schedule on the basis of pertinent details of the individual unit.
SEE OR SEARCH CLASS
172, Earth Working,
136, for diverse earth working tools useable alternately only, and subclasses 204+ for earth working tools alternately useable for right or left hand operation.
