E21C27/00 - CPC Classification Index

ClassID:

135796 ⎘

E21C27/00 - CPC Classification

Classification description:

Machines which completely free the mineral from the seam

Sub-classes:

E21C27/01 » specially adapted for removing overhanging coal 1
E21C27/02 » solely by slitting 69
E21C27/10 » by both slitting and breaking-down 4
E21C27/18 » by both slitting and planing 0
E21C27/20 » Mineral freed by means not involving slitting 9

Recent Application in this class:

20230059714

2023-02-23

ROCK-PIERCING FLEXIBLE ROCK DRILLING ROBOT AND ROCK BREAKING METHOD

20220090498

2022-03-24

Six-arm tunneling and anchoring machine for integrating tunneling and anchoring

20170268335

2017-09-21

MINING SYSTEMS

20150218943

2015-08-06

Mining systems

20150115691

2015-04-30

CONTINUOUS MATERIAL HAULAGE SYSTEM AND METHOD

20150061352

2015-03-05

Face equipment comprising hose levels placed between the face conveyor and the shield support frames

20140265524

2014-09-18

Mining systems

20140265522

2014-09-18

Mining methods and equipment

20140265519

2014-09-18

Mining systems with guidance systems

#10

20140117739

2014-05-01

Mining method for gassy and low permeability coal seams

#11

20130307315

2013-11-21

Launch platform for high wall mining

#12

20120205964

2012-08-16

Segments and apparatus for high wall mining including fluid feed

#13

20110193398

2011-08-11

Heading or extraction machine