E21D9/1046 - CPC Classification Index

ClassID:

136007 ⎘

E21D9/1046 - CPC Classification

Classification description:

Tunnels or galleries, with or without linings; Methods or apparatus for making thereof ; Layout of tunnels or galleries; Making by using boring or cutting machines with rotary cutting tools; Cutting tool fixtures Vibrating

Recent Application in this class:

20220049605

2022-02-17

Machine supporting rock cutting device

20200318478

2020-10-08

Unclogging of a discharge opening of a tunnel boring machine by ultrasonic waves

20200173277

2020-06-04

Machine supporting rock cutting device

20200063554

2020-02-27

Rock cutting device

20190048718

2019-02-14

SQUEEZING DEVICE FOR UNDERGROUND PROJECT

20180087380

2018-03-29

Machine supporting rock cutting device

20180087379

2018-03-29

Rock cutting device

20170211384

2017-07-27

High-frequency vibrating transverse drum cutter head, and drum cutter machine and tunnel boring machine therewith

20070193810

2007-08-23

Drive device for rotating and oscillating a tool, and a compatible tool for mining

#10

20070090678

2007-04-26

Rock boring device

#11

20050140200

2005-06-30

Oscillating disc cutter with speed controlling bearings