C23F   1/00		Ūʤˤ°Υå󥰡Σ	Etching metallic material by chemical means	11573
C23F   1/02		ʬŪå	Local etching	4334
C23F   1/04		ߥߡ	Chemical milling	682
C23F   1/06		䤹Ω	Sharpening files	87
C23F   1/08		֡㡥̿	Apparatus, e.g. for photomechanical printing surfaces	6453
C23F   1/10		åʪʣãƣͥˡΣ	Etching compositions(<b>C23F1/44</b> takes precedence)	507
C23F   1/12		ʪΣ	Gaseous compositions	705
C23F   1/14		ϱʪΣ	Aqueous compositions	721
C23F   1/16		ʪʣãƣͥˡΣ	Acidic compositions(<b>C23F1/42</b> takes precedence)	1304
C23F   1/18		ƼޤƼ򥨥å󥰤뤿ΤΡΣ	for etching copper or alloys thereof	2417
C23F   1/20		ߥ˥ޤϥߥ˥򥨥å󥰤뤿ΤΡΣ	for etching aluminium or alloys thereof	1356
C23F   1/22		ޥͥޤϥޥͥ򥨥å󥰤뤿ΤΡΣ	for etching magnesium or alloys thereof	197
C23F   1/24		ꥳޤϥޥ˥򥨥å󥰤뤿ΤΡΣ	for etching silicon or germanium	485
C23F   1/26		Ѳж°򥨥å󥰤뤿ΤΡΣ	for etching refractory metals	1482
C23F   1/28		Ŵ²°򥨥å󥰤뤿ΤΡΣ	for etching iron group metals	1724
C23F   1/30		¾ζ°򥨥å󥰤뤿ΤΡΣ	for etching other metallic material	1405
C23F   1/32		륫ʪʣãƣͥˡΣ	Alkaline compositions(<b>C23F1/42</b> takes precedence)	353
C23F   1/34		ƼޤƼ򥨥å󥰤뤿ΤΡΣ	for etching copper or alloys thereof	412
C23F   1/36		ߥ˥ޤϥߥ˥򥨥å󥰤뤿ΤΡΣ	for etching aluminium or alloys thereof	853
C23F   1/38		Ѳж°򥨥å󥰤뤿ΤΡΣ	for etching refractory metals	289
C23F   1/40		¾ζ°򥨥å󥰤뤿ΤΡΣ	for etching other metallic material	524
C23F   1/42		˺¤ʤΤʬƴޤΡΣ	containing a dispersed water-immiscible liquid	144
C23F   1/44		ۤäζ°δĤ°򥨥å󥰤뤿ʪΣ	Compositions for etching metallic material from a metallic material substrate of different composition	1513
C23F   1/46		åʪκΣ	Regeneration of etching compositions	2714
C23F   3/00		Ūʤˤ°ΤĤФΣ	Brightening metals by chemical means	1147
C23F   3/02		ڶ°	Light metals	294
C23F   3/03		ϱդѤΡΣ	with acidic solutions	694
C23F   3/04		Ŷ°	Heavy metals	546
C23F   3/06		ϱդѤΡΣ	with acidic solutions	1038
C23F   4/00		롼ףãƣޤϣãƣʬवʤɽ̤°뤿ˡΣ	Processes for removing metallic material from surfaces, not provided for in group <b>C23F1/00</b> or <b>C23F3/00</b>	10548
C23F   4/02		ȯˤΡΣ	by evaporation	276
C23F   4/04		ʪŪʬˤΡΣ	by physical dissolution	345
C23F  11/00		忩Τ줬ɽ̤ؤޤŬѤޤ忩Τؤޤźäˤ°ɿ	Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent	5486
C23F  11/02		ޤζޤϥؤź	in air or gases by adding vapour phase inhibitors	1424
C23F  11/04		ʻΤؤź	in markedly acid liquids	1665
C23F  11/06		ʥ륫Τؤź	in markedly alkaline liquids	550
C23F  11/08		¾αΤؤź	in other liquids	2345
C23F  11/10		ͭޤѤ<br><br><b><ul></ul></b><br>롼ףãƣãƣˤƤϡ饹ȥץ쥤ͥ롼뤬ŬѤ롤ʤƳإ٥ˤȿؼʤ¤ꡤʪϺǸŬڤʲսʬह롣	using organic inhibitors	2621
C23F  11/12		Ǵͭʪ	Oxygen-containing compounds	1844
C23F  11/14		Ǵͭʪ	Nitrogen-containing compounds	4274
C23F  11/16		βͭʪ	Sulfur-containing compounds	1502
C23F  11/167		ͭʪΣ	Phosphorus-containing compounds	1120
C23F  11/173		ʬҲʪΣ	Macromolecular compounds	1263
C23F  11/18		̵ޤѤ	using inorganic inhibitors	2732
C23F  13/00		۶ˤޤϱݸˤ°ɿ	Inhibiting corrosion of metals by anodic or cathodic protection	4833
C23F  13/02		ݸˤΡݸΤξѿޤϼ㡥ŵŪΣ	cathodic; Selection of conditions, parameters or procedures for cathodic protection, e.g. of electrical conditions	2341
C23F  13/04		˾ѿޤĴΡΣ	Controlling or regulating desired parameters	1171
C23F  13/06		ݸ֤ι¤ŪʬޤȤΩơΣ	Constructional parts, or assemblies of cathodic-protection apparatus	1995
C23F  13/08		ݸˤ忩äŬŶˡ¤ŶˤؤήšΣ	Electrodes specially adapted for inhibiting corrosion by cathodic protection; Manufacture thereof; Conducting electric current thereto	512
C23F  13/10		¤ħΤŶˡʣãƣͥˡΣ	Electrodes characterised by the structure(<b>C23F13/16</b> takes precedence)	986
C23F  13/12		ǺħΤŶˡʣãƣͥˡΣ	Electrodes characterised by the material(<b>C23F13/16</b> takes precedence)	269
C23F  13/14		۶ˤǺΣ	Material for sacrificial anodes	899
C23F  13/16		¤ǺȤ߹礻ħΤŶˡΣ	Electrodes characterised by the combination of the structure and the material	696
C23F  13/18		ŶˤٻʡΣ	Means for supporting electrodes	471
C23F  13/20		ŶˤؤήšΣ	Conducting electric current to electrodes	609
C23F  13/22		Τδƻ֡Σ	Monitoring arrangements therefor	1649
C23F  14/00		ʪŪޤϲŪŪΤαβǮ֤ιʥɻߺޤޤϽޤοؤźããƣˡΣ	Inhibiting incrustation in apparatus for heating liquids for physical or chemical purposes(adding scale preventives or removers to water <b>C02F5/00</b>)	415
C23F  14/02		Ūʤˤ	by chemical means	811
C23F  15/00		¾ˡˤ°ɿޤϹ	Other methods of preventing corrosion or incrustation	4313
C23F  17/00		ʤȤ⣱ϥ饹ãʬव졤ʤȤ⣱ϥ֥饹ãĤ⤷ϣãƤޤϥ饹ãޤ°ɽ̽¿ʳʥᥤ󥰥롼ףããããñΥᥤ󥰥롼פʬवʤˡˤ뤫ޤϥ֥饹ãäӣãĤʬवˡȹ碌ˤ뾯ʤȤ⣲ʾνŤ͹碌ʤؤ뤿ʤããˡΣ	Multi-step processes for surface treatment of metallic material involving at least one process provided for in class <b>C23</b> and at least one process covered by subclass <b>C21D</b> or <b>C22F</b> or class <b>C25</b>(coating for obtaining at least two superposed coatings either by methods not provided for in a single one of main groups <b>C23C2/00 to C23C26/00</b> , or by combinations of methods provided for in subclasses <b>C23C</b> and <b>C25D</b>, <b>C23C28/00</b>)	3528
