E21C25/02 - CPC Classification Index

ClassID:

135766 ⎘

E21C25/02 - CPC Classification

Classification description:

Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam Machines slitting solely by one or more percussive tools moved through the seam

Sub-classes:

E21C25/04 » Cutting crowns or other tools 0

Recent Application in this class:

20220372875

2022-11-24

Method for rotary clearing in stripping tooth holder of mining machine and rotary clearing device in stripping tooth holder

20210025237

2021-01-28

Mining or construction vehicle

20170009579

2017-01-12

RECIPROCATING IMPACT SLACK-DROP/ROTATING/RAKING MULTIFUNCTIONAL POWER SHAFT

20170002656

2017-01-05

Non-concentric protruding shaft fixed bearing reciprocating impact part for implementing reciprocating impact part non-concentric protruding shaft fixed bearing method

20160327162

2016-11-10

FLOATING SEALING METHOD OF FLOATING BUSHING SEALING RECIPROCATING IMPACT APPARATUS AND FLOATING SEALING RECIPROCATING IMPACT APPARATUS OF SEALING FLOATING BUSHING OF MINING LOADER

20160273357

2016-09-22

METHOD OF LOADING MATERIAL BY CURVED AUXILIARY ROCKER ARM ON MINING MACHINE, AND MINING MACHINE HAVING CURVED AUXILIARY ROCKER ARM CAPABLE OF LOADING MATERIAL FOR IMPLEMENTING SAID METHOD

20150145316

2015-05-28

SMALL-RESISTANCE HIGH-EFFICIENCY MINING DEVICE WITH MULTIPLE LAYERS OF PERCUSSION HEADS

20150137580

2015-05-21

HIGH-EFFICIENCY MINING METHOD FOR PERCUSSING FALLING-MATERIALS WITHOUT TRAPPING MATERIALS AND HIGH-EFFICIENCY MINING MACHINE FOR PERCUSSING FALLING-MATERIALS WITHOUT TRAPPING MATERIALS

20130015696

2013-01-17

Hydraulic resonant breaking hammer