(under subclass 133) Apparatus comprising a rolling or rotating earth working element for cutting or raising a furrow slice and a nonrolling adjacent member for receiving the furrow slice and inverting or completing the inversion of the same.
SEE OR SEARCH THIS CLASS, SUBCLASS:
166, for a rolling colter which acts to cut a vertical slit in the earth and a tool which operates in the slit.
558+, for disk-type tools with scrapers which merely act to scrape the disks to clean same.
