B23B2251/443 - CPC Classification Index

ClassID:

41174 ⎘

B23B2251/443 - CPC Classification

Classification description:

Details of tools for drilling machines; Margins, i.e. the narrow portion of the land which is not cut away to provide clearance on the circumferential surface Double margin drills

Recent Application in this class:

20230150039

2023-05-18

Drill

20220241873

2022-08-04

Drill for carbon-fiber composite material

20200384551

2020-12-10

Small-diameter drill and small-diameter drill manufacturing method

20200376570

2020-12-03

Drilling tool

20200324348

2020-10-15

Small-diameter drill bit

20200086401

2020-03-19

Cutting tool

20180071836

2018-03-15

Drill

20180065190

2018-03-08

Drill bit for drilling laminates

20180043441

2018-02-15

Drill

#10

20170326653

2017-11-16

Drill

#11

20170113283

2017-04-27

Drilling tool and method for producing drill holes

#12

20150283625

2015-10-08

TWO-EDGE DOUBLE MARGIN DRILL

#13

20140193220

2014-07-10

Bit exchangeable drill

#14

20110211924

2011-09-01

Drill

#15

20110158757

2011-06-30

Rotary cutting tool having sealed margins and method of making same

#16

20110116877

2011-05-19

Rotating cutting tool with support element

#17

20090226271

2009-09-10

Cutting tool with chisel edge

#18

20090191016

2009-07-30

Drill

#19

20090016832

2009-01-15

Drill

#20

20080080940

2008-04-03

Drilling tool, a method for drilling a hole and a use of a drilling tool

#21

20060099042

2006-05-11

Deep hole boring drill

#22

20060037786

2006-02-23

Drill having construction suitable for enlarging previously formed hole