B23B2251/426 - CPC Classification Index

#1

20200001376

2020-01-02

DRILLING TOOL

#2

20190240744

2019-08-08

Drill structure

#3

20190134719

2019-05-09

DRILL STRUCTURE

#4

20190076984

2019-03-14

Industrial high speed micro drill

#5

20180177054

2018-06-21

Drill bit for use in forming holes in printed circuit boards

#6

20180117731

2018-05-03

Industrial High Speed Micro Drill

#7

20180021861

2018-01-25

DRILL STRUCTURE

#8

20170209942

2017-07-27

Drill structure

#9

20170137202

2017-05-18

RESEALABLE RIGID MODIFIED ATMOSPHERE PACKAGING WITH LAMINATED SEALANT LAYER

#10

20170066063

2017-03-09

DRILL STRUCTURE

#11

20160311037

2016-10-27

Combined drill and chamfer tool

#12

20160214185

2016-07-28

Miniaturized deburring and/or chamfering tool with internal cooling

#13

20160144436

2016-05-26

Drill

#14

20150298219

2015-10-22

Drill bit structure

#15

20150283624

2015-10-08

Small-diameter drill

#16

20150209874

2015-07-30

Miniature drill

#17

20150183031

2015-07-02

Micro-drill and method for manufacturing the micro-drill

#18

20150017879

2015-01-15

Destructive and visual measurement automation system for web thickness of microdrills and method thereof

#19

20140093321

2014-04-03

Printed circuit board, and method and apparatus for drilling printed circuit board

#20

20110182684

2011-07-28

Micro drill and method of fabricating the same

#21

20110138622

2011-06-16

DRILL AND METHOD OF PRODUCING PRINTED WIRING BOARD

#22

20100329802

2010-12-30

Cutting drill and method for manufacturing printed wiring board

#23

20100178121

2010-07-15

Small-diameter deep hole drill and a micro deep hole drilling method

#24

20100098506

2010-04-22

CEMENTED CARBIDE, CUTTING TOOL, AND CUTTING DEVICE

#25

20090257839

2009-10-15

COATING METHOD FOR DRILL BITS

#26

20080267726

2008-10-30

Drill

#27

20070227766

2007-10-04

Drill and method of producing printed circuit board

#28

20070141963

2007-06-21

Automated drill bit re-sharpening and verification system

#29

20060115338

2006-06-01

Method for making miniature tri-blade drill and structure of the same

#30

20060027045

2006-02-09

Automated drill bit re-sharpening and verification system