ClassID:

119088

C21D9/26 - CPC Classification

Classification description:

Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for needles; for teeth for card-clothing

Recent Application in this class:
#1
20240102120
2024-03-28

METHOD FOR LASER HARDENING OF A CARD WIRE

#2
20200297456
2020-09-24

Method of improving ductility of needle for root canal treatment devices and method of manufacturing needle for root canal treatment devices including method of improving ductility of needle for root canal treatment devices

#3
20170145600
2017-05-25

All-steel fitting

#4
20170121784
2017-05-04

Method of hardening a clothing wire for processing textile fibres, and apparatus system therefor

#5
20160319472
2016-11-03

Tool for textiles and production method for same

#6
20110290385
2011-12-01

Rapid thermal treatment for enhancing bending stiffness and yield moment of curved needles

#7
20110108165
2011-05-12

Rapid thermal treatment for coloring surgical needles

#8
20090157116
2009-06-18

Rapid thermal treatment for enhancing bending stiffness and yield moment of curved needles

#9
20090151823
2009-06-18

Rapid thermal treatment for coloring surgical needles

#10
20090110951
2009-04-30

Atomically sharp iridium tip

#11
20090039117
2009-02-12

Eyeless sewing needle and fabrication method for the same

#12
20080312608
2008-12-18

Cannula With Ductile Portion

#13
20080295927
2008-12-04

Thermal forming of refractory alloy surgical needles and fixture and apparatus

#14
20080000053
2008-01-03

Saw-tooth wire for producing a saw-tooth all-steel clothing for a roller or a carding element of a spinning room machine

#15
20070028423
2007-02-08

Method and device for manufacturing sawtooth card clothing and all-steel card clothing as well as sawtooth wire