E21D15/51 - CPC Classification Index

ClassID:

136119 ⎘

E21D15/51 - CPC Classification

Classification description:

Props ; Chocks, e.g. made of flexible containers filled with backfilling material; Component parts or details of props specially adapted to hydraulic, pneumatic, or hydraulic-pneumatic props, e.g. arrangements of relief valves

Sub-classes:

E21D15/512 » {Arrangement of valves } 3
E21D15/515 » {Particular fluids not covered by any chemical subdivision} 1
E21D15/517 » {Extension elements} 1

Recent Application in this class:

20210010373

2021-01-14

Hydraulic support monitoring support pose in real time based on inertia measurement unit and detection method thereof

20170108016

2017-04-20

Sleeve holder for a hydraulic cylinder

20160102552

2016-04-14

TEMPORARY ROOF SUPPORT SYSTEM WITH ANTI-ROTATION FEATURE