Raking, scraping or other mechanical loosening devices

Official title: {Raking, scraping or other mechanical loosening devices, e.g. for caked dirt (loosening ice or hard snow E01H5/12; working the road surface E01C23/08); Apparatus for mechanically moving dirt on road surfaces, e.g. wipers for evacuating mud (wipers as accessories for road washing machines E01H1/101; of devices for removing liquids or semi-liquids E01H1/108; of snow scrapers for evacuating wet snow E01H5/06; wipers for spreading bitumen or the like E01C19/16, E01C19/178)}

E01H1/105 (Raking, scraping or other mechanical loosening devices) appears on 72 US grants and 33 published applications in this corpus.