angledozer
noun
an·gle·doz·er
ˈaŋgəlˌdōzə(r)
plural angledozers
: a tractor-driven pusher and scraper with the blade at an angle for pushing material to one side or the other (as for clearing land or leveling runways)
Several U.S. goods showed impressive increases …, including: … Self propelled bulldozers, angledozers, graders, levelers, scrapers … 
U.S. Federal News, 6 Apr. 2006
U.S. Federal News, 6 Apr. 2006
Word History
Etymology
originally a trademark of R. G. LeTourneau, Inc. for a scraper patented in 1933