Removing undesirable matter from roads or like surfaces, with or without moistening

Official title: Removing undesirable matter from roads or like surfaces, with or without moistening of the surface (for snow or ice E01H5/00; cleaning tramway rails E01H8/00; obstruction removers on vehicles B60R19/00; in combination with application of bitumen or the like E01C19/16; in combination with application of traffic line E01C23/16 {; Sweeping apparatus, particularly for lawns A01G20/30, A01G20/40; removing undesirable matter from floors and similar surfaces A47L5/00 - A47L13/00})

E01H1/00 (Removing undesirable matter from roads or like surfaces, with or without moistening) appears on 2,038 US grants and 1,535 published applications in this corpus.