.~ With non-driven tool (e.g., plow, harrow, drag, scraper, knife or roll, etc.) {8}
64
.~.~ Non-driven furrow opener and driven dam former
DEFINITION
Classification: 172/64
(under subclass 63) Apparatus in which the nondriven earth working element is provided for forming a furrow or irrigation ditch and the driven earth working element is provided for disposing earth across said furrow or ditch to thereby block or interrupt the same in order to form therein a series of basins spaced from each other by interposed dams.
SEE OR SEARCH THIS CLASS, SUBCLASS:
143, for nondriven furrow openers followed by intermittently rolling ditch blockers.
