E21D15/581 - CPC Classification Index

ClassID:

136133 ⎘

E21D15/581 - CPC Classification

Classification description:

Props ; Chocks, e.g. made of flexible containers filled with backfilling material; Devices for setting props or chocks in which the props are pre- loaded

Sub-classes:

E21D15/582 » {by means of power accumulators to be pre-charged by rock pressure } 0
E21D15/583 » {in which the lock is also activated} 0

Recent Application in this class:

20250198287

2025-06-19

MINE ROOF SUPPORT CRIBS

20130039704

2013-02-14

Device for roof support of underground mine/tunnel