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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E01H1/08
Pneumatically dislodging or taking-up undesirable matter; or small objects; Drying by heat only or by streams of gas; Cleaning by projecting abrasive particles
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E01H1/0809
Loosening or dislodging by blowing; ; Drying by means of gas streams
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