C23F   1/00  \	0	0	4K057	C23F   1/00	202	Ūʤˤ°Υå󥰡Σ	Etching metallic material by chemical means [2]
C23F   1/00  A	0	0	4K057	C23F   1/00	2392	ĥ󥰰	Etching in general
C23F   1/00  B	0	0	4K057	C23F   1/00	107	ư̼	Moving (bearing) parts
C23F   1/00  C	0	0	4K057	C23F   1/00	449	ɥޥ	Shadow mask
C23F   1/00  D	0	0	4K057	C23F   1/00	383	ͤη	Formation of decorative patterns
C23F   1/00  E	0	0	4K057	C23F   1/00	6	ԥۡݥɻ	Prevention of pin holes
C23F   1/00  Z	0	0	4K057	C23F   1/00	995	¾Τ	Others
C23F   1/00 101 \	1	1	4K057	C23F   1/00	283		Pre-treatment
C23F   1/00 102 \	2	2	4K057	C23F   1/00	793	쥸ȥѥݥη	Formation of resist patterns
C23F   1/00 103 \	1	1	4K057	C23F   1/00	271	°ؤޤ϶°ʤβŪȥĥԥ	Chemical stripping of metal layer or metal coating
C23F   1/00 104 \	1	1	4K057	C23F   1/00	223		After-treatment
C23F   1/02  \	1	1	4K057	C23F   1/02	530	ʬŪå	Local etching
C23F   1/04  \	2	2	4K057	C23F   1/04	79	ߥߡ	Chemical milling
C23F   1/06  \	1	1	4K057	C23F   1/06	2	䤹Ω	Sharpening files
C23F   1/08  \	1	1	4K057	C23F   1/08	1203	֡㡥̿	Apparatus, e.g. for photomechanical printing surfaces
C23F   1/08 101 \	2	2	4K057	C23F   1/08	419	太°	Tank and auxiliary facilities
C23F   1/08 102 \	3	3	4K057	C23F   1/08	149	ʪʤλٻ	Support of articles
C23F   1/08 103 \	3	3	4K057	C23F   1/08	358	ĥ󥰱դζ°̻ۡʮդ	Scattering of etching liquid on metal surface, spraying
C23F   1/08 104 \	3	3	4K057	C23F   1/08	53	ĥ󥰱դγ	Agitation of etching liquid
C23F   1/10  \	1	1	4K057	C23F   1/10	189	åʪʣãƣͥˡΣ	Etching compositions (C23F 1/44 takes precedence) [4]
C23F   1/12  \	2	2	4K057	C23F   1/12	185	ʪΣ	Gaseous compositions [4]
C23F   1/14  \	2	2	4K057	C23F   1/14	162	ϱʪΣ	Aqueous compositions [4]
C23F   1/16  \	3	3	4K057	C23F   1/16	175	ʪʣãƣͥˡΣ	Acidic compositions (C23F 1/42 takes precedence) [4]
C23F   1/18  \	4	4	4K057	C23F   1/18	801	ƼޤƼ򥨥å󥰤뤿ΤΡΣ	for etching copper or alloys thereof [4]
C23F   1/20  \	4	4	4K057	C23F   1/20	444	ߥ˥ޤϥߥ˥򥨥å󥰤뤿ΤΡΣ	for etching aluminium or alloys thereof [4]
C23F   1/22  \	4	4	4K057	C23F   1/22	52	ޥͥޤϥޥͥ򥨥å󥰤뤿ΤΡΣ	for etching magnesium or alloys thereof [4]
C23F   1/24  \	4	4	4K057	C23F   1/24	127	ꥳޤϥޥ˥򥨥å󥰤뤿ΤΡΣ	for etching silicon or germanium [4]
C23F   1/26  \	4	4	4K057	C23F   1/26	360	Ѳж°򥨥å󥰤뤿ΤΡΣ	for etching refractory metals [4]
C23F   1/28  \	4	4	4K057	C23F   1/28	500	Ŵ²°򥨥å󥰤뤿ΤΡΣ	for etching iron group metals [4]
C23F   1/30  \	4	4	4K057	C23F   1/30	453	¾ζ°򥨥å󥰤뤿ΤΡΣ	for etching other metallic material [4]
C23F   1/32  \	3	3	4K057	C23F   1/32	49	륫ʪʣãƣͥˡΣ	Alkaline compositions (C23F 1/42 takes precedence) [4]
C23F   1/34  \	4	4	4K057	C23F   1/34	112	ƼޤƼ򥨥å󥰤뤿ΤΡΣ	for etching copper or alloys thereof [4]
C23F   1/36  \	4	4	4K057	C23F   1/36	290	ߥ˥ޤϥߥ˥򥨥å󥰤뤿ΤΡΣ	for etching aluminium or alloys thereof [4]
C23F   1/38  \	4	4	4K057	C23F   1/38	93	Ѳж°򥨥å󥰤뤿ΤΡΣ	for etching refractory metals [4]
C23F   1/40  \	4	4	4K057	C23F   1/40	175	¾ζ°򥨥å󥰤뤿ΤΡΣ	for etching other metallic material [4]
C23F   1/42  \	3	3	4K057	C23F   1/42	34	˺¤ʤΤʬƴޤΡΣ	containing a dispersed water-immiscible liquid [4]
C23F   1/44  \	1	1	4K057	C23F   1/44	383	ۤäζ°δĤ°򥨥å󥰤뤿ʪΣ	Compositions for etching metallic material from a metallic material substrate of different composition [4]
C23F   1/46  \	1	1	4K057	C23F   1/46	645	åʪκΣ	Regeneration of etching compositions [4]
C23F   3/00  \	0	0	4K057	C23F   3/00	201	Ūʤˤ°ΤĤФΣ	Brightening metals by chemical means [2]
C23F   3/02  \	1	1	4K057	C23F   3/02	48	ڶ°	Light metals
C23F   3/03  \	2	2	4K057	C23F   3/03	72	ϱդѤΡΣ	with acidic solutions [4]
C23F   3/04  \	1	1	4K057	C23F   3/04	44	Ŷ°	Heavy metals
C23F   3/06  \	2	2	4K057	C23F   3/06	216	ϱդѤΡΣ	with acidic solutions [4]
C23F   4/00  \	0	0	4K057	C23F   4/00	133	롼ףãƣޤϣãƣʬवʤɽ̤°뤿ˡΣ	Processes for removing metallic material from surfaces, not provided for in group C23F 1/00 or C23F 3/00 [4]
C23F   4/00  A	0	0	4K057	C23F   4/00	8438	ɥ饤ĥ󥰤ˤ	Dry etching in general
C23F   4/00  Z	0	0	4K057	C23F   4/00	331	¾Τ	Others
C23F   4/02  \	1	1	4K057	C23F   4/02	157	ȯˤΡΣ	by evaporation [4]
C23F   4/04  \	1	1	4K057	C23F   4/04	181	ʪŪʬˤΡΣ	by physical dissolution [4]
C23F  11/00  \	0	0	4K062	C23F  11/00	208	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
C23F  11/00  A	0	0	4K062	C23F  11/00	254	ɻ̣ۡǡͥ	Application of anticorrosives (G, H take precedence)
C23F  11/00  B	0	1	4K062	C23F  11/00	824	ɻʬͭʪ	With anticorrosive ingredient comprised of organic compounds
C23F  11/00  C	0	2	4K062	C23F  11/00	765	ǲʪʪϥ󲽹ʪޤ	Containing nitric compounds, sulphuric compounds, or phosphoric compounds
C23F  11/00  D	0	3	4K062	C23F  11/00	263	ʪޤ	Containing sulphuric compounds
C23F  11/00  E	0	3	4K062	C23F  11/00	125	󲽹ʪޤ	Containing phosphoric compounds
C23F  11/00  F	0	1	4K062	C23F  11/00	831	̵ɻʬޤ	Containing inorganic anticorrosive ingredients
C23F  11/00  G	0	0	4K062	C23F  11/00	351	ɻޥݥȡơݥסʪѥĥɻ	Anticorrosive sheets, tapes or moulding, anticorrosives for grommet
C23F  11/00  H	0	0	4K062	C23F  11/00	169	ȡ󥯥ݥŴŴɻ	Rustproofing of steel frame and reinforcing bar in cement, concrete
C23F  11/00  Z	0	0	4K062	C23F  11/00	206	¾Τ	Others
C23F  11/02  \	1	1	4K062	C23F  11/02	317	ޤζޤϥؤź	in air or gases by adding vapour phase inhibitors
C23F  11/04  \	1	1	4K062	C23F  11/04	289	ʻΤؤź	in markedly acid liquids
C23F  11/06  \	1	1	4K062	C23F  11/06	131	ʥ륫Τؤź	in markedly alkaline liquids
C23F  11/08  \	1	1	4K062	C23F  11/08	167	¾αΤؤź	in other liquids
C23F  11/10  \	2	2	4K062	C23F  11/10	94	ͭޤѤ	using organic inhibitors
C23F  11/12  \	3	3	4K062	C23F  11/12	372	Ǵͭʪ	Oxygen-containing compounds
C23F  11/12 101 \	4	4	4K062	C23F  11/12	355	ܥޤ	Containing carboxyl group
C23F  11/12 102 \	4	4	4K062	C23F  11/12	173	ޤ	Containing hydroxyl
C23F  11/14  \	3	3	4K062	C23F  11/14	959	Ǵͭʪ	Nitrogen-containing compounds
C23F  11/14 101 \	4	4	4K062	C23F  11/14	288	ߥδޤ	Containing amino group
C23F  11/16  \	3	3	4K062	C23F  11/16	366	βͭʪ	Sulfur-containing compounds
C23F  11/167  \	3	3	4K062	C23F  11/167	350	ͭʪΣ	Phosphorus-containing compounds [4]
C23F  11/173  \	3	3	4K062	C23F  11/173	336	ʬҲʪΣ	Macromolecular compounds [4]
C23F  11/18  \	2	2	4K062	C23F  11/18	895	̵ޤѤ	using inorganic inhibitors
C23F  11/18 101 \	3	3	4K062	C23F  11/18	81	ޤ	Containing silicates
C23F  11/18 102 \	3	3	4K062	C23F  11/18	225	ޤ	Containing phosphates
C23F  13/00  \	0	0	4K060	C23F  13/00	189	۶ˤޤϱݸˤ°ɿ	Inhibiting corrosion of metals by anodic or cathodic protection
C23F  13/00  R	0	0	4K060	C23F  13/00	91	۶ݸˤ	by anodic protection
C23F  13/00  Z	0	0	4K060	C23F  13/00	722	¾Τ	Others
C23F  13/02  \	1	1	4K060	C23F  13/02	69	ݸˤΡݸΤξѿޤϼ㡥ŵŪΣ	by protection of cathodic; conditions, variables or selection of procedures for protection of cathodic, e.g. electrical conditions [5]
C23F  13/02  A	1	0	4K060	C23F  13/02	1837	ή۶㡥۶˻	Anodic protection method, e.g. using sacrifice anodes
C23F  13/02  B	1	0	4K060	C23F  13/02	1349	Ÿ	External power system
C23F  13/02  C	1	0	4K060	C23F  13/02	80	ή	drainage method
C23F  13/02  D	1	0	4K060	C23F  13/02	352	ɿ	Inhibiting corrosion of water heater
C23F  13/02  E	1	0	4K060	C23F  13/02	333	Ǯ򴹴ɿ	Inhibiting corrosion of heat exchanger
C23F  13/02  F	1	0	4K060	C23F  13/02	302	󥯤ɿ	Inhibiting corrosion of tank
C23F  13/02  G	1	0	4K060	C23F  13/02	339	ɿ	Inhibiting corrosion of vessels
C23F  13/02  H	1	0	4K060	C23F  13/02	409	湽¤ʪɿ	Inhibiting corrosion of sub aqua structures
C23F  13/02  J	1	0	4K060	C23F  13/02	625	۴ɤɿ	Inhibiting corrosion of piping
C23F  13/02  K	1	0	4K060	C23F  13/02	11	ɿ	Inhibiting corrosion of rail
C23F  13/02  L	1	0	4K060	C23F  13/02	448	ŴŴɿ	Inhibiting corrosion of reinforced bar or steel frame
C23F  13/02  M	1	0	4K060	C23F  13/02	491	ãƣġãƣ̤ʬवʤоʪɿ	Inhibiting corrosion of object not covered by C23F13/02-C23F13/02 L
C23F  13/02  Z	1	0	4K060	C23F  13/02	61	¾Τ	Others
C23F  13/04  \	2	2	4K060	C23F  13/04	308	˾ѿޤĴΡΣ	Controlling or regulating desired parameters [5]
C23F  13/06  \	2	2	4K060	C23F  13/06	450	ݸ֤ι¤ŪʬޤȤΩơΣ	Constructional parts, or assemblies of cathodic-protection apparatus [5]
C23F  13/08  \	3	3	4K060	C23F  13/08	139	ݸˤ忩äŬŶˡ¤ŶˤؤήšΣ	Electrodes specially adapted for inhibiting corrosion by cathodic protection; Manufacture thereof; Conducting electric current thereto [5]
C23F  13/10  \	4	4	4K060	C23F  13/10	4	¤ħΤŶˡʣãƣͥˡΣ	Electrodes characterised by the structure(C23F13/16 takes precedence) [5]
C23F  13/10  A	4	0	4K060	C23F  13/10	457	۶ˤηޤϹ¤ħ	characterised by shape or structure of sacrifice anodes
C23F  13/10  B	4	0	4K060	C23F  13/10	272	ŸŶˤηޤϹ¤ħ	characterised by shape or structure of external power system electrodes
C23F  13/10  Z	4	0	4K060	C23F  13/10	12	¾Τ	Others
C23F  13/12  \	4	4	4K060	C23F  13/12	114	ǺħΤŶˡʣãƣͥˡΣ	Electrodes characterised by the material(C23F13/16 takes precedence) [5]
C23F  13/14  \	5	5	4K060	C23F  13/14	330	۶ˤǺΣ	Material for sacrificial anodes [5]
C23F  13/16  \	4	4	4K060	C23F  13/16	249	¤ǺȤ߹礻ħΤŶˡΣ	Electrodes characterised by the combination of the structure and the material [5]
C23F  13/18  \	4	4	4K060	C23F  13/18	706	ŶˤٻʡΣ	Means for supporting electrodes [5]
C23F  13/20  \	4	4	4K060	C23F  13/20	9	ŶˤؤήšΣ	Conducting electric current to electrodes [5]
C23F  13/20  A	4	0	4K060	C23F  13/20	263	ϩħΤ	characterised by circuit
C23F  13/20  Z	4	0	4K060	C23F  13/20	146	¾Τ	Others
C23F  13/22  \	4	4	4K060	C23F  13/22	389	Τδƻ֡Σ	Monitoring arrangements therefor [5]
C23F  14/00  \	0	0	4K062	C23F  14/00	203	ʪŪޤϲŪŪΤαβǮ֤ιʥɻߺޤޤϽޤοؤźããƣˡΣ	Inhibiting incrustation in apparatus for heating liquids for physical or chemical purposes (adding scale preventives or removers to water C02F 5/00) [2]
C23F  14/02  \	1	1	4K062	C23F  14/02	46	Ūʤˤ	by chemical means
C23F  14/02  A	1	0	4K062	C23F  14/02	388	ݥɻߺź	Addition of scale preventives
C23F  14/02  Z	1	0	4K062	C23F  14/02	180	¾Τ	Others
C23F  15/00  \	0	0	4K062	C23F  15/00	2011	¾ˡˤ°ɿޤϹ	Other methods of preventing corrosion or incrustation
C23F  17/00  \	0	0	4K062	C23F  17/00	419	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 C23 and at least one process covered by subclass C21D or C22F or class C25 (coating for obtaining at least two superposed coatings either by methods not provided for in a single one of main groups C23C2/00-C23C26/00 or by combinations of methods provided for in subclasses C23C and C25D C23C28/00)
