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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E01H1/12
Hand implements, e.g. litter pickers
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E01H1/1206
for picking up excrements
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