ClassID:

118949

C21D1/667 - CPC Classification

Classification description:

General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering; Quenching devices for spray quenching

Recent Application in this class:
#1
20250388988
2025-12-25

COMPACT STEEL PLATE CONTINUOUS QUENCHING MACHINE

#2
20250333810
2025-10-30

COOLING APPARATUS FOR METAL STRIP, HEAT TREATMENT FACILITY FOR METAL STRIP, AND COOLING METHOD FOR METAL STRIP

#3
20250230513
2025-07-17

QUENCHING METHOD, AND QUENCHING MACHINE

#4
20250206063
2025-06-26

QUENCHING A WHEEL COMPRISING A HUB

#5
20250129443
2025-04-24

QUENCHING APPARATUS, CONTINUOUS ANNEALING FACILITY, QUENCHING METHOD, METHOD FOR MANUFACTURING STEEL SHEET, AND METHOD FOR MANUFACTURING COATED STEEL SHEET

#6
20250084517
2025-03-13

HIGH STRENGTH AND HIGH FORMABILITY STEEL SHEET HAVING EXCELLENT SPOT WELDABILITY, AND METHOD FOR MANUFACTURING SAME

#7
20240399390
2024-12-05

HOUSING OF AN INDUCTION HARDENING TOOL

#8
20240360528
2024-10-31

QUENCHING APPARATUS, QUENCHING METHOD, AND METHOD OF MANUFACTURING METAL SHEET

#9
20240351094
2024-10-24

APPARATUS AND METHOD FOR MANUFACTURING RACK BAR

#10
20240344158
2024-10-17

QUENCHING APPARATUS FOR METAL SHEET, CONTINUOUS ANNEALING EQUIPMENT, METHOD FOR QUENCHING METAL SHEET, METHOD FOR MANUFACTURING COLD ROLLED STEEL SHEET, AND METHOD FOR MANUFACTURING COATED STEEL SHEET

#11
20240301524
2024-09-12

QUENCHING APPARATUS AND QUENCHING METHOD FOR METAL SHEET, AND METHOD FOR MANUFACTURING STEEL SHEET

#12
20240269734
2024-08-15

METHOD FOR PRODUCING A MICROALLOYED STEEL, A MICROALLOYED STEEL PRODUCED USING THE METHOD, AND A COMBINED CASTING/ROLLING INSTALLATION

#13
20240254579
2024-08-01

AUTOMATED PLATE SHAPING AND VERIFICATION

#14
20240219130
2024-07-04

COOLING DEVICE FOR HEAT TREATMENT

#15
20240026491
2024-01-25

METHOD FOR MANUFACTURING A THERMALLY TREATED STEEL SHEET

#16
20240026490
2024-01-25

RAPID COOLING OF HIGH YIELD STRENGTH SHEET STEEL

#17
20230304116
2023-09-28

Thermal Treatment of Component

#18
20230250500
2023-08-10

Device and Method for Water Spray Quenching

#19
20230220507
2023-07-13

Systems and methods for automatic spray quenching

#20
20230082585
2023-03-16

Method for Inductive Surface Layer Hardening

#21
20230019923
2023-01-19

TEMPERATURE-CONTROL DEVICE FOR PARTIALLY COOLING A COMPONENT

#22
20230017287
2023-01-19

DEVICE AND METHOD FOR HEAT TREATMENT OF STEELS, INCLUDING A WET COOLING

#23
20230014843
2023-01-19

DEVICE AND METHOD FOR HEAT TREATMENT OF STEELS, INCLUDING A WET COOLING

#24
20220410240
2022-12-29

Hot-stamping molding method enabling molding of components having various levels of strength by part through cooling control by position

#25
20220316018
2022-10-06

Cooling jacket and quenching apparatus

#26
20220307102
2022-09-29

HIGH PRODUCTIVITY PLANT FOR THE QUENCHING OF STEEL BARS, QUENCHING MACHINE AND CORRESPONDING METHOD FOR QUENCHING STEEL BARS

#27
20220213570
2022-07-07

Cooling device for seamless steel pipes

#28
20220185012
2022-06-16

Quenching a wheel comprising a hub

#29
20220042128
2022-02-10

METHOD OF MAKING A TEE RAIL HAVING A HIGH STRENGTH BASE

#30
20220042121
2022-02-10

Roller quenching flow zone control device for metal plate strips

#31
20220033931
2022-02-03

COOLING METHOD AND DEVICE FOR COOLING A WIRE AND CORRESPONDING WIRE-PROCESSING INSTALLATION

#32
20220033922
2022-02-03

Heat treatment apparatus for vehicle body component

#33
20220017988
2022-01-20

Water spray system for heat treatment of metal plate strips and control method

#34
20210379648
2021-12-09

Apparatus and method for manufacturing rack bar

#35
20210317543
2021-10-14

Method for producing ultra-thin hot-rolled strip steel

#36
20210299724
2021-09-30

COOLING APPARATUS

#37
20210285067
2021-09-16

MICROTREATMENT OF IRON-BASED ALLOY, APPARATUS AND METHOD THEREFOR AND ARTICLES RESULTING THEREFROM

#38
20210246525
2021-08-12

Furnace for partially heating metal components

#39
20210164071
2021-06-03

TEMPERATURE-CONTROL DEVICE FOR PARTIALLY COOLING A COMPONENT

#40
20210162478
2021-06-03

Cooling device and method for operating same

#41
20210154713
2021-05-27

Cooling apparatus for cooling a metallic material and method for cooling a metallic material

#42
20210087644
2021-03-25

High pressure instantaneously uniform quench to control part properties

#43
20210087643
2021-03-25

Method for quenching steel pipe, equipment for quenching steel pipe, and method for manufacturing steel pipe

#44
20210078061
2021-03-18

Side spray method for cooling the steel strip after hot rolling

#45
20210062291
2021-03-04

Induction heat treating apparatus

#46
20210054470
2021-02-25

METHOD OF PRODUCTION OF PARTS OF AHS STEEL BY CONTROLLED LOCAL COOLING BY A COOLING MEDIUM AND BY INTERRUPTED COOLING AT REQUIRED TEMPERATURE TO CREATE A MULTIPHASE MICROSTRUCTURE

#47
20200377967
2020-12-03

STEEL MATERIAL COOLING DEVICE AND COOLING METHOD

#48
20200376527
2020-12-03

Control of the water economy of a cooling path

#49
20200362427
2020-11-19

Method for cooling a metallic item and cooling bar

#50
20200360976
2020-11-19

Cooling bar and cooling process with variable cooling rate for steel sheets

#51
20200332386
2020-10-22

Apparatus for the thermal treatment of metallic products

#52
20200331046
2020-10-22

Cooling system for cooling metal rolling stock

#53
20200298295
2020-09-24

Cooling of a metal strip using a position-controlled valve device

#54
20200282454
2020-09-10

Method of a heat transfer of a non-metallic or metallic item

#55
20200276625
2020-09-03

Piercing machine, and method for producing seamless metal pipe using the same

#56
20200190648
2020-06-18

System and method for heat treating aluminum alloy castings

#57
20200190613
2020-06-18

Plant and method for the thermal treatment of solids

#58
20200181730
2020-06-11

Homogenization process for coiled tubing

#59
20200156134
2020-05-21

THERMAL-ASSISTED MULTIPLE SHEET ROLL FORMING

#60
20200122209
2020-04-23

Device for cooling metal strips or sheets

#61
20200071788
2020-03-05

Method and section for quick cooling of a continuous line for treating metal belts

#62
20200071781
2020-03-05

Cooling equipment for continuous annealing furnace

#63
20200063225
2020-02-27

High pressure rapid gas quenching vacuum furnace utilizing an isolation transformer in the blower motor power system to eliminate ground faults from electrical gas ionization

#64
20200040415
2020-02-06

Temperature control station for partially thermally treating a metal component

#65
20200032368
2020-01-30

A METHOD FOR MANUFACTURING A THERMALLY TREATED STEEL SHEET

#66
20200032361
2020-01-30

Coolant spray module system for heat treated metal product

#67
20200017944
2020-01-16

METAL EXTRUSION QUENCHING METHOD AND SYSTEM WITH VARIABLE LENGTH ENTRY ZONE

#68
20200017934
2020-01-16

Method and device for cooling a steel strip travelling in a continuous line cooling section

#69
20190390316
2019-12-26

METAL MATERIAL COOLING APPARATUS

#70
20190390314
2019-12-26

High-strength galvanized hot-rolled steel sheet and method for manufacturing same

#71
20190352728
2019-11-21

Method For Railway Rolling Stock Unit Center Plate Strengthening And A Device to Perform It

#72
20190338386
2019-11-07

Method of making high strength steel crane rail

#73
20190309386
2019-10-10

Heat treatment method and heat treatment device

#74
20190300975
2019-10-03

Metal Coating Method

#75
20190256937
2019-08-22

Apparatus for microtreatment of iron-based alloy

#76
20190241987
2019-08-08

Hybrid quench process for hot stamping of steel parts

#77
20190210080
2019-07-11

Cooling device and cooling method of hot-rolled steel sheet

#78
20190191496
2019-06-20

Heating apparatus and heating method

#79
20190136338
2019-05-09

TEMPERATURE-CONTROL DEVICE FOR COMPONENTS

#80
20190107152
2019-04-11

Bearing ring for roller bearing, method for manufacturing the same, and roller bearing

#81
20190106762
2019-04-11

Rail manufacturing method and manufacturing equipment

#82
20190106761
2019-04-11

RAIL OF RAILWAY WITH PASSENGER AND FREIGHT MIXED TRAFFIC AND MANUFACTURING METHOD THEREOF

#83
20190105694
2019-04-11

HIGH-CARBON AND HIGH-STRENGTH AND TOUGHNESS PEARLITIC RAIL AND MANUFACTURING METHOD THEREOF

#84
20190105693
2019-04-11

High-toughness and plasticity hypereutectoid rail and manufacturing method thereof

#85
20190098707
2019-03-28

Heating coil

#86
20190032164
2019-01-31

HEAT TREATMENT METHOD AND HEAT TREATMENT DEVICE

#87
20190032163
2019-01-31

Heat treatment method and heat treatment device

#88
20190032162
2019-01-31

Method and device for the heat treatment of a metal component

#89
20190024203
2019-01-24

METHOD FOR HEAT TREATMENT OF A METAL COMPONENT

#90
20190024199
2019-01-24

Heat treatment method and heat treatment device

#91
20190022726
2019-01-24

Large scale metal forming control system and method

#92
20190002750
2019-01-03

Method of heat transfer between a metallic or non-metallic item and a heat transfer fluid

#93
20190002749
2019-01-03

Method of heat transfer between a metallic or non-metallic item and a heat transfer fluid

#94
20180371304
2018-12-27

Method of a heat transfer of a non-metallic or metallic item

#95
20180363086
2018-12-20

Method for induction surface hardening of a ring surface

#96
20180355456
2018-12-13

Process and device for cooling a metal substrate

#97
20180327876
2018-11-15

Continuous-flow cooling apparatus and method of cooling strip therewith

#98
20180327875
2018-11-15

METHOD FOR MANUFACTURING A MACHINE PART

#99
20180312938
2018-11-01

Method and apparatus for continuous thermal treatment of a steel strip

#100
20180305779
2018-10-25

Heat treatment apparatus and heat treatment method

#101
20180282833
2018-10-04

Method for manufacturing bainite high-strength seamless steel tube, and bainite high-strength seamless steel tube

#102
20180274054
2018-09-27

Seamless steel tube with high strength and toughness and manufacturing method therefor

#103
20180274049
2018-09-27

COOLING DEVICE AND THERMAL TREATMENT DEVICE

#104
20180265941
2018-09-20

Process for on-line quenching of seamless steel tube using residual heat and manufacturing method

#105
20180251866
2018-09-06

Rail cooling device

#106
20180236514
2018-08-23

COOLING FACILITY AND METHOD

#107
20180230568
2018-08-16

Method for intercooling sheet steel

#108
20180202015
2018-07-19

DEVICE FOR TREATING, BY HEAT TEMPERING, A METAL ELEMENT OF THE TUBE OR BAR TYPE HAVING ARCHED PORTIONS

#109
20180202013
2018-07-19

System and method for quenching castings

#110
20180179609
2018-06-28

System and Method for Induction Hardening of Metal Rings

#111
20180155803
2018-06-07

Method for the homogeneous non-contact temperature control of non-endless surfaces which are to be temperature-controlled, and device therefor

#112
20180142315
2018-05-24

Hardening apparatus for a long member, and a hardening method for a long member

#113
20180135156
2018-05-17

Method and device for changing the temperature of metal strips in a flatness-adaptive manner

#114
20180127849
2018-05-10

HOT SHEET METAL FORMING BY GAS AND DIRECT QUENCHING

#115
20180119246
2018-05-03

METHOD AND DEVICE FOR GENERATING DEFORMATION TWINNING IN A METAL

#116
20180117628
2018-05-03

Internal quench system for cooling pipe

#117
20180112284
2018-04-26

Method of Making High Strength Steel Crane Rail

#118
20180112283
2018-04-26

Tripod universal joint fairway heat treatment device and heat treatment method

#119
20180105917
2018-04-19

Pre-cooling system having controlled internal adjustment

#120
20180023173
2018-01-25

Water-Based Lubrication For Hot Forming

#121
20170362690
2017-12-21

Method for producing complex formed castings and casting consisting of an AlCu alloy

#122
20170349965
2017-12-07

Method of quenching steel pipe, apparatus for quenching steel pipe, method of manufacturing steel pipe and facility for manufacturing steel pipe

#123
20170327926
2017-11-16

Method for manufacturing metal sheet and rapid quenching unit

#124
20170327925
2017-11-16

CROSS-STRIP TEMPERATURE VARIATION CONTROL

#125
20170314088
2017-11-02

Zinc-coated hot formed steel component with tailored property

#126
20170306433
2017-10-26

High toughness heat-treated steel pipe having three-layer structure and manufacturing method thereof

#127
20170298464
2017-10-19

COOLING SYSTEMS FOR HEAT-TREATED PARTS AND METHODS OF USE

#128
20170283898
2017-10-05

APPARATUS AND METHOD FOR QUENCHING RODS AND TUBES

#129
20170247775
2017-08-31

System and method of making a cast part

#130
20170211165
2017-07-27

Method for cooling steel strip and cooling apparatus

#131
20170204489
2017-07-20

METHOD OF FORMING STEEL SHEET, EQUIPMENT FOR FORMING THE SAME, AND FORMED PRODUCT

#132
20170198367
2017-07-13

Quenching apparatus and method for producing metallic material

#133
20170189949
2017-07-06

Cooling facility and method

#134
20170175214
2017-06-22

Heat treatment device and cooling device

#135
20170159152
2017-06-08

Apparatuses and methods for processing a metal ribbon

#136
20170159142
2017-06-08

Cooling Apparatus

#137
20170150553
2017-05-25

Heating apparatus and heating method

#138
20170145539
2017-05-25

Method of Heat Treatment of a Metal Material

#139
20170081737
2017-03-23

COOLING APPARATUS AND MULTI-CHAMBER HEAT TREATMENT APPARATUS

#140
20170073787
2017-03-16

Cooling device and multi-chamber heat treatment device

#141
20170044643
2017-02-16

METHOD AND APPARATUS FOR PRODUCING A STEEL STRIP

#142
20170023304
2017-01-26

Conveyance device for heat treatment device and heat treatment device

#143
20170022579
2017-01-26

COOLING DEVICE AND MULTI-CHAMBER HEAT TREATMENT DEVICE

#144
20170016082
2017-01-19

Heat treatment system and heat treatment method

#145
20170016081
2017-01-19

OVERHEATING-INSENSITIVE FINE GRAINED ALLOY STEEL FOR USE IN DOUBLE HIGH-FREQUENCY HEAT TREATMENT AND METHOD OF MANUFACTURING THE SAME

#146
20160376676
2016-12-29

Method for Manufacturing a Golf Club Head

#147
20160369366
2016-12-22

Heat-treatment device and heat-treatment method

#148
20160319411
2016-11-03

SYSTEM AND METHOD FOR HEAT TREATING ALUMINUM ALLOY CASTINGS

#149
20160304984
2016-10-20

Method for continuous thermal treatment of a steel strip

#150
20160237516
2016-08-18

Apparatus for quenching

#151
20160230247
2016-08-11

NON QUENCHED AND TEMPERED STEEL AND MANUFACTURING PROCESS THEREOF

#152
20160230246
2016-08-11

WIRE ROD COOLING DEVICE AND WIRE ROD COOLING METHOD

#153
20160215358
2016-07-28

NON QUENCHED AND TEMPERED STEEL AND MANUFACTURING PROCESS THEREOF

#154
20160108486
2016-04-21

Heat treatment apparatus and heat treatment method

#155
20160083813
2016-03-24

System and method for quenching castings

#156
20160047009
2016-02-18

System for thermal treatment of rails

#157
20160040263
2016-02-11

Rail manufacturing method and manufacturing equipment

#158
20160008861
2016-01-14

Cooling of a metal strip using a position-controlled valve device

#159
20150368735
2015-12-24

Method for induction surface hardening of a ring surface

#160
20150319810
2015-11-05

Induction heat treatment of an annular workpiece

#161
20150137434
2015-05-21

Apparatus to quench a ring-shaped article

#162
20150137433
2015-05-21

Deformation correcting device

#163
20150107727
2015-04-23

Method and system for thermal treatments of rails

#164
20150079419
2015-03-19

Process for manufacturing a recovery annealed coated steel substrate for packaging applications and a packaging steel product produced thereby

#165
20150075679
2015-03-19

Induction Heat-Treating Apparatus and Process

#166
20150047758
2015-02-19

Method and apparatus of manufacturing high strength cold rolled steel sheet

#167
20150044500
2015-02-12

Process for manufacturing a recovery annealed coated steel substrate for packaging applications and a packaging steel product produced thereby

#168
20150034214
2015-02-05

APPARATUS, SYSTEM, AND METHOD FOR REINFORCING A BEND IN METALLIC MATERIAL

#169
20150028023
2015-01-29

Heating coil, heat treatment apparatus, and heat treatment method for elongated workpiece

#170
20150027599
2015-01-29

Rail cooling method and rail cooling device

#171
20150021836
2015-01-22

Rail heat treatment device and rail heat treatment method

#172
20140367898
2014-12-18

COOLING SYSTEMS FOR HEAT-TREATED PARTS AND METHODS OF USE

#173
20140350746
2014-11-27

Method and apparatus for controlling the strip temperature of the rapid cooling section of a continuous annealing line

#174
20140327193
2014-11-06

Press quench machine

#175
20140251391
2014-09-11

Inner-diameter quenching device

#176
20140208780
2014-07-31

Cooling system and cooling method of rolling steel

#177
20140158234
2014-06-12

Device for blowing gas into a face of traveling strip material

#178
20140131930
2014-05-15

HEAT TREATMENT APPARATUS

#179
20140116576
2014-05-01

System and method of making a cast part

#180
20140069556
2014-03-13

High carbon thin steel sheet and method for producing same

#181
20140047729
2014-02-20

Method and device for blowing gas on a running strip

#182
20140044148
2014-02-13

Device and method for measuring temperature of heat-treated workpiece

#183
20130312879
2013-11-28

Spray quench systems for heat treated metal products

#184
20130312875
2013-11-28

Spray quench systems for heat treated metal products

#185
20130292007
2013-11-07

High temperature nitriding of titanium parts

#186
20130249150
2013-09-26

Cooling system for hot-rolled steel strip

#187
20130175260
2013-07-11

High frequency heating coil

#188
20130032977
2013-02-07

Mist cooling apparatus and heat treatment apparatus

#189
20130008567
2013-01-10

Heat treatment method

#190
20120318478
2012-12-20

Method for cooling sheet metal by means of a cooling section, cooling section and control device for a cooling section

#191
20120317830
2012-12-20

Hood Assembly for Controllably Cooling Extruded Section Members of Aluminium and Other Metal Materials at an Output of an Extruding Line Therefor.

#192
20120242014
2012-09-27

Mist cooling apparatus, heat treatment apparatus, and mist cooling method

#193
20120235331
2012-09-20

Method and apparatus for removing coolant liquid from moving metal strip

#194
20120217235
2012-08-30

Surface treatment system, a surface treatment process and a system treated component

#195
20120085209
2012-04-12

Cutting method of steel for machine structural use

#196
20120060536
2012-03-15

METHOD AND APPARATUS FOR TEMPERING MATERIAL

#197
20120055592
2012-03-08

Method of metal processing using cryogenic cooling

#198
20120028202
2012-02-02

HEAT TREATMENT DEVICE AND HEAT TREATMENT METHOD

#199
20120024435
2012-02-02

METHOD AND DEVICE FOR CONTROLLED STRAIGHTENING AND COOLING OF A WIDE METAL STRIP, ESPECIALLY A STEEL STRIP OR SHEET METAL, RUNNING OUT OF A HOT ROLLED STRIP ROLLING MILL

#200
20110275024
2011-11-10

Heat treatment apparatus and heat treatment method

#201
20110270433
2011-11-03

Method and section for cooling a moving metal belt by spraying liquid

#202
20110262877
2011-10-27

HEAT TREATMENT APPARATUS

#203
20110253268
2011-10-20

High carbon content and high strength heat-treated steel rail and method for producing the same

#204
20110248023
2011-10-13

Induction heat treatment of an annular workpiece

#205
20110132054
2011-06-09

METHOD FOR LONGITUDINALLY GUIDING ROLLING STOCK, ESPECIALLY A HOT-ROLLED STEEL STRIP, AND HOT-ROLLING MILL FOR CARRYING OUT SAID METHOD

#206
20110107776
2011-05-12

METHOD AND APPARATUS FOR CONTROLLED COOLING

#207
20110073590
2011-03-31

Inductor and use of such an inductor

#208
20110061406
2011-03-17

METHOD OF COOLING STRETCH-FORMED-PART

#209
20110034203
2011-02-10

Push to talk over cellular (POC) server capable of changing session priority settings when receiving authorized override message

#210
20110030820
2011-02-10

Device for blowing gas onto a face of traveling strip material

#211
20110018178
2011-01-27

Method and device for blowing gas on a running strip

#212
20110005737
2011-01-13

FLUID MICROJET SYSTEM

#213
20110000584
2011-01-06

Process for forming steel

#214
20100312399
2010-12-09

Operating method for a cooling section having centralized detection of valve characteristics and objects corresponding thereto

#215
20100307646
2010-12-09

Cooling system and cooling method of rolling steel

#216
20100288009
2010-11-18

Hot press forming apparatus and hot press forming method

#217
20100276955
2010-11-04

TREATMENT OF RAILWAY WHEELS

#218
20100269367
2010-10-28

DEVICE FOR BLOWING GAS ONTO A FACE OF A TRAVELING STRIP OF MATERIAL

#219
20100230014
2010-09-16

Method of quenching a ring-shaped article and apparatus therefor

#220
20100219566
2010-09-02

Cooling control method, cooling control apparatus, and cooling water amount calculation apparatus

#221
20100132854
2010-06-03

Microtreatment of iron-based alloy, apparatus and method therefor, and articles resulting therefrom

#222
20100084059
2010-04-08

Method of producing locally austempered ductile iron

#223
20100024505
2010-02-04

Device and method for cooling hot strip

#224
20090321966
2009-12-31

Quench zone design using spray nozzles

#225
20090211670
2009-08-27

Cooling apparatus for a hot rolled steel strip and methods for cooling a hot rolled steel strip

#226
20090194207
2009-08-06

Cooling method of steel plate

#227
20090183805
2009-07-23

Cooling method of a steel pipe

#228
20090126451
2009-05-21

Hot forging facility

#229
20090065983
2009-03-12

A METHOD AND APPARATUS FOR LIMITING THE VIBRATION OF STEEL OR ALUMINUM STRIPS IN BLOWN-GAS OR -AIR COOLING ZONES

#230
20080277035
2008-11-13

Method and Device for Quenching Flat Steel Products

#231
20080264529
2008-10-30

Apparatus and Method for Continuously Processing Long Bar by Heat Treatment Using Induction Heating

#232
20080048047
2008-02-28

Apparatus and method for regulating cryogenic spraying

#233
20070251287
2007-11-01

Hot rolled strip cooling device with coolant header

#234
20070241485
2007-10-18

Method and apparatus for limiting the vibration of steel or aluminum strips in a blown-gas or -air cooling zones

#235
20070220906
2007-09-27

Method and Device for Rapid Cooling of Work Pieces

#236
20070198122
2007-08-23

Method for producing a metal

#237
20070181234
2007-08-09

Spray quench systems for heat treated metal products

#238
20070131218
2007-06-14

Method and apparatus utilizing first and second heating devices for heat treating a fuel assembly channel with induction heating

#239
20070113937
2007-05-24

Forging quench

#240
20070107815
2007-05-17

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