(under subclass 27) Apparatus in which the plant severing or shredding means is driven with a regular cyclic motion relative to its support or frame by a power means in addition to the motion imparted directly to the means by the translation of the device as a whole as it is moved across the surface of the ground being treated.
SEE OR SEARCH THIS CLASS, SUBCLASS:
35+, for driven earth working elements or cleaners.
