E21C29/00 - CPC Classification Index

ClassID:

135826 ⎘

E21C29/00 - CPC Classification

Classification description:

Propulsion of machines for slitting or completely freeing the mineral from the seam

Sub-classes:

E21C29/02 » by means on the machine exerting a thrust against fixed supports 27
E21C29/04 » by cable or chains 3
E21C29/22 » by wheels, endless tracks or the like 45

Recent Application in this class:

20210156250

2021-05-27

Advance and Retreat Automatic Control Method Based on Hydraulic Sensing Conversion and Advance and Retreat Automatic Control System Based on Hydraulic Sensing Conversion

20130307315

2013-11-21

Launch platform for high wall mining