E21C35/187 - CPC Classification Index

ClassID:

135876 ⎘

E21C35/187 - CPC Classification

Classification description:

Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam not provided for in groups - , or; Mining picks; Holders therefor with arrangement of fluid-spraying nozzles

Recent Application in this class:

20250320818

2025-10-16

TUNNEL BORING MACHINE EQUIPPED WITH HIGH-PRESSURE WATER JET CUTTING SYSTEM AND COMBINED TUNNELING METHOD

20210231013

2021-07-29

Hard rock roadway and tunnel boring machine with actively rotating hobs

20200208516

2020-07-02

Cutter pick assembly with water spray assembly

20180003052

2018-01-04

Cutting bit assembly

20160341040

2016-11-24

Block with coolant delivery

20160215620

2016-07-28

Cutting bit assembly

20140368022

2014-12-18

Mineral winning pick, pick holder, and combination

20140312678

2014-10-23

Mineral cutter pick etc

20120175939

2012-07-12

Bit holding system with an opening for removal of broken bits

#10

20120119563

2012-05-17

Cutting tool with nozzle for spraying water on a cutter bit

#11

20110181098

2011-07-28

Miner cutting bit holding apparatus

#12

20110089746

2011-04-21

Rotatable cutting tool-tool holder-base assembly

#13

20110080037

2011-04-07

Rotatable cutting tool with through coolant

#14

20110006587

2011-01-13

Water spray assembly etc

#15

20100052406

2010-03-04

Cutting tool with water injection to the cutting bit shank

#16

20080223744

2008-09-18

Tool holder

#17

20060055229

2006-03-16

Cutting tool with nozzle for spraying water on cutter bit

#18

20050082898

2005-04-21

Cutting tool assembly having attached spray nozzle housing