E21D15/52 - CPC Classification Index

ClassID:

136123 ⎘

E21D15/52 - CPC Classification

Classification description:

Props ; Chocks, e.g. made of flexible containers filled with backfilling material; Component parts or details of props Extensible units located above or below standard props

Sub-classes:

E21D15/523 » {with hydraulic or pneumatic control} 1
E21D15/526 » {for step-by-step extension of the prop} 0

Recent Application in this class:

20210156251

2021-05-27

Adjustable lattice girder

20160102552

2016-04-14

TEMPORARY ROOF SUPPORT SYSTEM WITH ANTI-ROTATION FEATURE

20120027529

2012-02-02

Mine Support Having a Linearly Moveable and/or Pivoting End Plate

20080240868

2008-10-02

Mine support having a linearly moveable and/or pivoting end plate