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Publication of NL127819CpublicationCriticalpatent/NL127819C/xx
A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
A01B19/00—Harrows with non-rotating tools
A01B19/02—Harrows with non-rotating tools with tools rigidly or elastically attached to a tool-frame
A01B19/06—Harrows with non-rotating tools with tools rigidly or elastically attached to a tool-frame with tools or tool-frames moved to-and-fro mechanically