Patent classifications
E
FIXED CONSTRUCTIONS
Load children
E01
CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Load children
E01F
ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
Load children
9/00
Arrangement of road signs or traffic signals; Arrangements for enforcing caution
Load children Filter patents View analytics View as hierarchy
E01F9/60
Upright bodies, e.g. marker posts or bollards; Supports for road signs
Load children Filter patents View analytics View as hierarchy
E01F9/623
characterised by form or by structural features, e.g. for enabling displacement or deflection
Load children Filter patents View analytics View as hierarchy
E01F9/627
self-righting after deflection or displacement
Load children Filter patents View analytics View as hierarchy
E01F9/629
Traffic guidance, warning or control posts, bollards, pillars or like upstanding bodies or structures
Filter patents View analytics View as hierarchy