Patent classifications
E
FIXED CONSTRUCTIONS
Load children
E01
CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Load children
E01B
PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
Load children
27/00
Placing, renewing, working, cleaning, or taking-up the ballast, with or without concurrent work on the track; Devices therefor; Packing sleepers
Load children Filter patents View analytics View as hierarchy
E01B27/12
Packing sleepers, with or without concurrent work on the track; Compacting track-carrying ballast
Load children Filter patents View analytics View as hierarchy
E01B27/13
Packing sleepers, with or without concurrent work on the track
Load children Filter patents View analytics View as hierarchy