B23B2251/428 - CPC Classification Index

#1

20220097150

2022-03-31

HOLE SAW ARBOR ASSEMBLY

#2

20220072630

2022-03-10

Hole Saw with Open End Cap Geometry

#3

20210354209

2021-11-18

Hole cutter with multiple fulcrums

#4

20210283697

2021-09-16

Trepanning tool with plug management

#5

20210245271

2021-08-12

Hole saw

#6

20210154750

2021-05-27

Hole saw arbor

#7

20200171585

2020-06-04

Hole saw

#8

20200122245

2020-04-23

Hole saw with open end cap geometry

#9

20200122242

2020-04-23

Core drill guide apparatus and method

#10

20200114435

2020-04-16

Hole cutter with multiple fulcrums

#11

20200108452

2020-04-09

Hole saw arbor assembly

#12

20200061722

2020-02-27

Hole saw

#13

20200061721

2020-02-27

Hole saw

#14

20190375034

2019-12-12

Ground set hole saw

#15

20190201986

2019-07-04

Hole cutter with multiple fulcrums

#16

20190022770

2019-01-24

Hole saw

#17

20180272441

2018-09-27

Hole cutter with multiple fulcrums

#18

20180193926

2018-07-12

Hole saw

#19

20180161950

2018-06-14

Active water cooling of gear mechanisms by means of a geometrically specially formed insert in diamond drilling devices

#20

20180085834

2018-03-29

Mandrel assembly for electric tool and electric tool having same

#21

20180085833

2018-03-29

Hole saw arbor assembly

#22

20180056405

2018-03-01

Hole saw

#23

20170355103

2017-12-14

Drill Bit

#24

20170281198

2017-10-05

System, apparatus, and method for grafting tissue

#25

20170259352

2017-09-14

Method of machining workpiece and boring drill

#26

20170232530

2017-08-17

Hole cutter with multiple fulcrums

#27

20170157681

2017-06-08

Hole Saw with Open End Cap Geometry

#28

20170120346

2017-05-04

Hole saw

#29

20170066064

2017-03-09

Hole cutter with multiple fulcrums

#30

20170043416

2017-02-16

SELF-CLEANING MANDREL ASSEMBLY AND DRILL BIT

#31

20160288219

2016-10-06

DRILL HEAD

#32

20160279717

2016-09-29

Quick-release arbor for hole saw

#33

20160167140

2016-06-16

Support assembly for a core drill

#34

20160158851

2016-06-09

Iron-Cutting Drill

#35

20160059322

2016-03-03

SECOND STAGE DRILL BIT

#36

20150367425

2015-12-24

Hole saw with interchangeable cutting blades

#37

20150328694

2015-11-19

Drill bit with an exchangeable cutting portion

#38

20150239051

2015-08-27

Hole cutter with multiple fulcrums

#39

20150190866

2015-07-09

Hole saw

#40

20140369775

2014-12-18

Quick-change attachment configuration for a hole saw

#41

20140334892

2014-11-13

SUPPORT ASSEMBLY FOR A CORE DRILL

#42

20140334891

2014-11-13

Automated core drilling device capable of mating with a center-mounted core-catching device

#43

20140320287

2014-10-30

Security device for a power tool accessory

#44

20140314505

2014-10-23

MULTI-POSITION HOLE SAW ASSEMBLY WITH PLUG EJECTOR

#45

20140308084

2014-10-16

DOOR HARDWARE OPENING ENLARGEMENT TOOL

#46

20140255117

2014-09-11

Cutter assembly

#47

20140248101

2014-09-04

Power tool arbor device

#48

20130004255

2013-01-03

Core drilling machine

#49

20110097169

2011-04-28

Power tool arbor device

#50

20080075548

2008-03-27

SELF-CENTERING TOOL

#51

20060120815

2006-06-08

Self-centering tool

#52

15946024

2019-06-18

Wall repair plug system

#53

15077094

2017-11-14

Hole saw with threadably removable portion