Devices for cutting-out partings, e.g. layers of sand between seams of coal

Full Title

Machines for obtaining, or the removal of, materials in open-pit mines > for coal, brown coal, or the like > Devices for cutting-out partings, e.g. layers of sand between seams of coal

Classification Context

Section:

FIXED CONSTRUCTIONS

Class:

EARTH OR ROCK DRILLING; MINING

Subclass:

MINING OR QUARRYING