Patent classifications
E
FIXED CONSTRUCTIONS
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E01
CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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E01H
STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING; OR PREVENTING; FOG IN GENERAL; CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
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1/00
Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
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E01H1/10
Hydraulically loosening or dislodging undesirable matter; Raking or scraping apparatus; ; Removing liquids or semi-liquids e.g., absorbing water, sliding-off mud
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E01H1/101
Hydraulic loosening or dislodging, combined or not with mechanical loosening or dislodging, e.g. road washing machines with brushes or wipers
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E01H1/103
in which the soiled loosening or washing liquid is removed, e.g. by suction
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