by grinding

Full Title

Working rails, sleepers, baseplates, or the like, in or on the line; Machines, tools, or auxiliary devices specially designed therefor > Working rail or other metal track components on the spot > Removing metal from rails, rail joints, or baseplates, e.g. for deburring welds, reconditioning worn rails > by grinding

Classification Context

Section:

FIXED CONSTRUCTIONS

Class:

CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES

Subclass:

PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS