CPC Subgroup
E01B 29/40 Means or arrangements for temporarily supporting laid tracks, or rails or sleepers in the track (temporary fishplates E01B11/18)
Full Title
Laying, rebuilding, or taking-up tracks; Tools or machines therefor (E01B27/00, E01B31/00 take precedence) > Means or arrangements for temporarily supporting laid tracks, or rails or sleepers in the track (temporary fishplates E01B11/18)