CPC Subgroup
E01B 25/34 Switches; Frogs; Crossings
Full Title
Tracks for special kinds of railways (systems B61B; wheel tracks on roads E01C9/02) > Tracks for magnetic suspension or levitation vehicles > Switches; Frogs; Crossings
E01B 25/34 Tracks for special kinds of railways (systems B61B; wheel tracks on roads E01C9/02) > Tracks for magnetic suspension or levitation vehicles > Switches; Frogs; Crossings