(under subclass 781) Apparatus in which the scraper has a wheel or wheel substitute intimately associated therewith which is separate and distinct from the vehicle ground supports.
(1) Note. The wheel or wheel substitute under this definition may incidentally have an earth working function but an element which is intended to have an earth working function or a side earth retaining wall of a scraper is not included even though the lower edge or surface of said element or wall functions as a ground support. Scrapers with such elements or walls are classified on other features, though they should be cross-referenced to this subclass if structurally similar to scrapers with ground supports.