E21D23/0086 - CPC Classification Index

ClassID:

136207 ⎘

E21D23/0086 - CPC Classification

Classification description:

Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor in galleries

Sub-classes:

E21D23/0091 » {at the junction with the working face} 6
E21D23/0095 » {Temporary supports at the driving front} 1

Recent Application in this class:

20180195390

2018-07-12

MINING UNDERGROUND FORMATIONS

20140369769

2014-12-18

System and method for enabling machine movement