E21D11/403 - CPC Classification Index

ClassID:

136073 ⎘

E21D11/403 - CPC Classification

Classification description:

Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings , e.g. by assembling; Devices or apparatus specially adapted for handling or placing units of linings for tunnels or galleries combined with the head machine

Recent Application in this class:

20210032991

Device and method for continuously driving a tunnel

20190234214

Device and method for the automated picking up and laying of a segment to form a lining of a tunnel

20190153862

METHOD AND SYSTEM OF COAL MINE ROOF STABILIZATION

20190003305

Tunnel boring machine backup train comprising means for conveying an arch segment

20180216406

Tunnelling machine

20170152745

TUNNEL SUPPORT INSTALLATION APPARATUS

20160348505

Method and system of coal mine roof stabilization

20150300168

Method and system of coal mine roof stabilization

20120213598

Roof support sheet handling for underground mines

20110193398

Heading or extraction machine

14920793

Device, system and method for reinforcing a tunnel