E21D15/005 - CPC Classification Index

ClassID:

136078 ⎘

E21D15/005 - CPC Classification

Classification description:

Props ; Chocks, e.g. made of flexible containers filled with backfilling material characterised by the material

Sub-classes:

E21D15/007 » {spark-reducing} 0

Recent Application in this class:

20250101869

SUPPORT PROP

20240167383

Telescopic device and telescopic annular tunnel steel arch

20200378255

Internally injected replacement support room-type coal pillar recovery method

20200131905

Mine roof support

20150204192

Mine roof support

20130336727

YIELDABLE MINE ROOF SUPPORT