Patent classifications
E
FIXED CONSTRUCTIONS
Load children
E01
CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Load children
E01C
CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
Load children
5/00
Pavings made of prefabricated single units
Load children Filter patents View analytics View as hierarchy
E01C5/22
made of units composed of a mixture of materials covered by two or more of groups; E01C5/008; , E01C5/02 - E01C5/20; except embedded reinforcing materials
Load children Filter patents View analytics View as hierarchy
E01C5/223
on prefabricated supporting or prefabricated foundation units, except coverings made of layers of similar elements
Filter patents View analytics View as hierarchy