B23F1/00	7	Making gear teeth by tools of which the profile matches the profile of the required surface (special adaptations for making curved teeth B23F9/00)	B23F1/00	B23F1/00		63
B23F1/02	8	by grinding	B23F1/02	B23F1/02		315
B23F1/023	9	{the tool being a grinding worm}	B23F1/02	B23F1/02		61
B23F1/026	9	{with plural tools}	B23F1/02	B23F1/02		40
B23F1/04	8	by planing or slotting	B23F1/04	B23F1/04		273
B23F1/06	8	by milling	B23F1/06	B23F1/06		449
B23F1/065	9	{with plural tools}	B23F1/06	B23F1/06		16
B23F1/08	8	by broaching; by broach-milling	B23F1/08	B23F1/08		90
B23F1/083	9	{by broach-milling}	B23F1/08	B23F1/08		16
B23F1/086	9	{Pot broaching}	B23F1/08	B23F1/08		58
B23F3/00	7	Making gear teeth involving copying operations controlled by templates having a profile which matches that of the required tooth face or part thereof or a copy thereof to a different scale (copying systems or devices per seB23Q35/00)	B23F3/00	B23F3/00		74
B23F5/00	7	Making straight gear teeth involving moving a tool relatively to a workpiece with a rolling-off or an enveloping motion with respect to the gear teeth to be made	B23F5/00	B23F5/00		156
B23F5/02	8	by grinding	B23F5/02	B23F5/02		545
B23F5/04	9	the tool being a grinding worm	B23F5/04	B23F5/04		295
B23F5/06	9	the tool being a grinding disc with a plane front surface	B23F5/06	B23F5/06		194
B23F5/065	10	{and the grinding disc axis varying angularly with respect to the workpiece axis}	B23F5/06	B23F5/06		24
B23F5/08	9	the tool being a grinding disc having the same profile as the tooth or teeth of a rack	B23F5/08	B23F5/08		125
B23F5/085	10	{and the grinding disc axis varying angularly with respect to the workpiece axis}	B23F5/08	B23F5/08		17
B23F5/10	9	the tool being a grinding disc having the same profile as the tooth or teeth of a crown or bevel wheel	B23F5/10	B23F5/10		19
B23F5/12	8	by planing or slotting	B23F5/12	B23F5/12		412
B23F5/125	9	{with two single-tooth tools mounted on reciprocating slides}	B23F5/12	B23F5/12		3
B23F5/14	9	the tool having the same profile as a tooth or teeth of a rack	B23F5/14	B23F5/14		192
B23F5/16	9	the tool having a shape similar to that of a spur wheel or part thereof	B23F5/16	B23F5/16		243
B23F5/163	10	{the tool and workpiece being in crossed axis arrangement, e.g. skiving, i.e. "Waelzschaelen"}	B23F5/16	B23F5/16		228
B23F5/166	10	{with plural tools}	B23F5/16	B23F5/16		81
B23F5/18	9	the tool having the same profile as a tooth of a crown wheel	B23F5/18	B23F5/18		3
B23F5/20	8	by milling	B23F5/20	B23F5/20		619
B23F5/202	9	{the tool having a shape similar to that of a gear or part thereof, with cutting edges situated on the tooth contour lines (tools therefor B23F21/122)}	B23F5/20	B23F5/20		90
B23F5/205	9	{with plural tools}	B23F5/20	B23F5/20		79
B23F5/207	10	{the tools being interlocked}	B23F5/20	B23F5/20		43
B23F5/22	9	the tool being a hob for making spur gears	B23F5/22	B23F5/22		555
B23F5/24	9	the tool being a hob for making bevel gears	B23F5/24	B23F5/24		58
B23F5/26	9	the tool having the same profile as a tooth or teeth of a rack, for making spur gears	B23F5/26	B23F5/26		13
B23F5/27	9	the tool having the same profile as a tooth or teeth of a crown or bevel wheel	B23F5/27	B23F5/27		5
B23F5/28	8	by broaching; by broach-milling	B23F5/28	B23F5/28		29
B23F5/285	9	{broaching with working tools mounted on an endless chain or belt}	B23F5/28	B23F5/28		19
B23F7/00	7	Making herringbone gear teeth	B23F7/00	B23F7/00		144
B23F9/00	7	Making gears having teeth curved in their longitudinal direction	B23F9/00	B23F9/00		75
B23F9/003	8	{by broaching}	B23F9/00	B23F9/00		4
B23F9/006	9	{broaching with working tools mounted on an endless chain or belt}	B23F9/00	B23F9/00		5
B23F9/02	8	by grinding	B23F9/02	B23F9/02		107
B23F9/025	9	{with a face-mill-type, i.e. cup-shaped, grinding wheel}	B23F9/02	B23F9/02		126
B23F9/04	8	by planing or slotting with reciprocating cutting tools	B23F9/04	B23F9/04		19
B23F9/06	9	having a shape similar to a spur-wheel or part thereof	B23F9/06	B23F9/06		14
B23F9/07	9	having a shape similar to a crown wheel or a part thereof	B23F9/07	B23F9/07		1
B23F9/08	8	by milling, e.g. with helicoidal hob	B23F9/08	B23F9/08		105
B23F9/082	9	{with a hob}	B23F9/08	B23F9/08		51
B23F9/084	10	{the hob being tapered}	B23F9/08	B23F9/08		77
B23F9/086	9	{with two or more tools}	B23F9/08	B23F9/08		15
B23F9/088	10	{the tools being interlocked}	B23F9/08	B23F9/08		5
B23F9/10	9	with a face-mill	B23F9/10	B23F9/10		305
B23F9/105	10	{with continuous indexing, i.e. with continuous work rotation}	B23F9/10	B23F9/10		144
B23F9/12	10	for non-continuous generating processes	B23F9/12	B23F9/12		7
B23F9/14	10	for continuous generating processes	B23F9/14	B23F9/14		7
B23F11/00	7	Making worm wheels, e.g. by hobbing	B23F11/00	B23F11/00		258
B23F13/00	7	Making worms by methods essentially requiring the use of machines of the gear-cutting type (making screw-thread B23G)	B23F13/00	B23F13/00		110
B23F13/003	8	{making worms of conical or barrel shape}	B23F13/00	B23F13/00		4
B23F13/006	9	{by grinding}	B23F13/00	B23F13/00		12
B23F13/02	8	Making worms of cylindrical shape	B23F13/02	B23F13/02		69
B23F13/04	9	by grinding	B23F13/04	B23F13/04		77
B23F13/06	8	Making worms of globoidal shape	B23F13/06	B23F13/06		89
B23F13/08	9	by grinding	B23F13/08	B23F13/08		37
B23F15/00	7	Methods or machines for making gear wheels of special kinds not covered by groups B23F7/00&#160;-&#160;B23F13/00	B23F15/00	B23F15/00		238
B23F15/005	8	{Making sprocket teeth}	B23F15/00	B23F15/00		13
B23F15/02	8	Making gear teeth on wheels of varying radius of operation, e.g. on elliptical wheels	B23F15/02	B23F15/02		53
B23F15/04	8	Making fine-pitch gear teeth on clock wheels or the like by special machining	B23F15/04	B23F15/04		14
B23F15/06	8	Making gear teeth on the front surface of wheels, e.g. for clutches or couplings with toothed faces	B23F15/06	B23F15/06		212
B23F15/08	8	Making intermeshing rotors, e.g. of pumps	B23F15/08	B23F15/08		121
B23F17/00	7	Special methods or machines for making gear teeth, not covered by the preceding groups	B23F17/00	B23F17/00		421
B23F17/001	8	{for making gear pairs}	B23F17/00	B23F17/00		83
B23F17/003	8	{for dry cutting}	B23F17/00	B23F17/00		63
B23F17/005	8	{for machining tooth fillet or tooth root}	B23F17/00	B23F17/00		49
B23F17/006	8	{using different machines or machining operations}	B23F17/00	B23F17/00		197
B23F17/008	9	{Features relating to transfer of work gears between different work stations}	B23F17/00	B23F17/00		30
B23F19/00	7	Finishing gear teeth by other tools than those used for manufacturing gear teeth	B23F19/00	B23F19/00		588
B23F19/002	8	{Modifying the theoretical tooth flank form, e.g. crowning (B23F19/10 takes precedence)}	B23F19/00	B23F19/00		279
B23F19/005	9	{using a face-mill-type tool, e.g. a milling or a grinding tool}	B23F19/00	B23F19/00		53
B23F19/007	9	{using a gear-shaped tool}	B23F19/00	B23F19/00		170
B23F19/02	8	Lapping gear teeth	B23F19/02	B23F19/02		320
B23F19/025	9	{Lapping bevel gears by making use of a correspondingly shaped counterpart}	B23F19/02	B23F19/02		129
B23F19/04	9	Lapping spur gears by making use of a correspondingly shaped counterpart	B23F19/04	B23F19/04		219
B23F19/045	10	{the counterpart having internal toothing}	B23F19/04	B23F19/04		25
B23F19/05	8	Honing gear teeth	B23F19/05	B23F19/05		205
B23F19/052	9	{by making use of a tool in the shape of a worm}	B23F19/05	B23F19/05		39
B23F19/055	9	{by making use of a tool in the shape of a bevel gear or a crown gear}	B23F19/05	B23F19/05		38
B23F19/057	9	{by making use of a tool in the shape of an internal gear}	B23F19/05	B23F19/05		95
B23F19/06	8	Shaving the faces of gear teeth	B23F19/06	B23F19/06		448
B23F19/063	9	{by making use of a tool in the shape of an internal gear}	B23F19/06	B23F19/06		7
B23F19/066	9	{with plural tools}	B23F19/06	B23F19/06		28
B23F19/10	8	Chamfering the end edges of gear teeth	B23F19/10	B23F19/10		378
B23F19/101	9	{by planing}	B23F19/10	B23F19/10		53
B23F19/102	9	{by milling}	B23F19/10	B23F19/10		111
B23F19/104	10	{the tool being a hob}	B23F19/10	B23F19/10		48
B23F19/105	10	{the tool being an end mill}	B23F19/10	B23F19/10		116
B23F19/107	10	{the tool being a fly cutter}	B23F19/10	B23F19/10		45
B23F19/108	9	{by brushing}	B23F19/10	B23F19/10		44
B23F19/12	9	by grinding	B23F19/12	B23F19/12		177
B23F19/125	10	{the tool being a grinding worm}	B23F19/12	B23F19/12		28
B23F21/00	7	Tools specially adapted for use in machines for manufacturing gear teeth	B23F21/00	B23F21/00		248
B23F21/005	8	{with plural tools on a common axis}	B23F21/00	B23F21/00		126
B23F21/02	8	Grinding discs; Grinding worms (truing grinding tools B24B; grinding tools in general B24D)	B23F21/02	B23F21/02		106
B23F21/023	9	{Face-mill-type, i.e. cup-shaped, grinding wheels}	B23F21/02	B23F21/02		33
B23F21/026	9	{Grinding worms}	B23F21/02	B23F21/02		134
B23F21/03	8	Honing tools	B23F21/03	B23F21/03		169
B23F21/035	9	{Honing worms}	B23F21/03	B23F21/03		18
B23F21/04	8	Planing or slotting tools	B23F21/04	B23F21/04		82
B23F21/043	9	{with inserted cutting elements}	B23F21/04	B23F21/04		10
B23F21/046	10	{in exchangeable arrangement}	B23F21/04	B23F21/04		17
B23F21/06	9	having a profile which matches a gear tooth profile	B23F21/06	B23F21/06		23
B23F21/063	10	{with inserted cutting elements}	B23F21/06	B23F21/06		3
B23F21/066	11	{in exchangeable arrangement}	B23F21/06	B23F21/06		8
B23F21/08	9	having the same profile as a tooth or teeth of a rack	B23F21/08	B23F21/08		31
B23F21/083	10	{with inserted cutting elements}	B23F21/08	B23F21/08		2
B23F21/086	11	{in exchangeable arrangement}	B23F21/08	B23F21/08		22
B23F21/10	9	Gear-shaper cutters having a shape similar to a spur wheel or part thereof	B23F21/10	B23F21/10		128
B23F21/103	10	{with inserted cutting elements}	B23F21/10	B23F21/10		4
B23F21/106	11	{in exchangeable arrangement}	B23F21/10	B23F21/10		26
B23F21/12	8	Milling tools	B23F21/12	B23F21/12		156
B23F21/122	9	{having a shape similar to that of a gear or part thereof, with cutting edges situated on the tooth contour lines}	B23F21/12	B23F21/12		58
B23F21/124	9	{with cutting teeth disposed on the inner periphery of a ring}	B23F21/12	B23F21/12		9
B23F21/126	9	{with inserted cutting elements}	B23F21/12	B23F21/12		15
B23F21/128	10	{in exchangeable arrangement}	B23F21/12	B23F21/12		50
B23F21/14	9	Profile cutters of disc type	B23F21/14	B23F21/14		78
B23F21/143	10	{with inserted cutting elements}	B23F21/14	B23F21/14		11
B23F21/146	11	{in exchangeable arrangement}	B23F21/14	B23F21/14		43
B23F21/16	9	Hobs	B23F21/16	B23F21/16		488
B23F21/163	10	{with inserted cutting elements}	B23F21/16	B23F21/16		31
B23F21/166	11	{in exchangeable arrangement}	B23F21/16	B23F21/16		244
B23F21/18	10	Taper hobs, e.g. for bevel gears	B23F21/18	B23F21/18		51
B23F21/183	11	{with inserted cutting elements}	B23F21/18	B23F21/18		1
B23F21/186	12	{in exchangeable arrangement}	B23F21/18	B23F21/18		6
B23F21/20	9	Fly cutters	B23F21/20	B23F21/20		11
B23F21/203	10	{with inserted cutting elements}	B23F21/20	B23F21/20		3
B23F21/206	11	{in exchangeable arrangement}	B23F21/20	B23F21/20		20
B23F21/22	9	Face-mills for longitudinally-curved gear teeth	B23F21/22	B23F21/22		57
B23F21/223	10	{with inserted cutting elements}	B23F21/22	B23F21/22		11
B23F21/226	11	{in exchangeable arrangement}	B23F21/22	B23F21/22		318
B23F21/23	10	with cutter teeth arranged on a spiral curve for continuous generating processes	B23F21/23	B23F21/23		16
B23F21/233	11	{with inserted cutting elements}	B23F21/23	B23F21/23		
B23F21/236	12	{in exchangeable arrangement}	B23F21/23	B23F21/23		9
B23F21/24	8	Broach-milling tools	B23F21/24	B23F21/24		21
B23F21/241	9	{with inserted cutting elements}	B23F21/24	B23F21/24		1
B23F21/243	10	{in exchangeable arrangement}	B23F21/24	B23F21/24		10
B23F21/245	9	{Face broach mills}	B23F21/24	B23F21/24		21
B23F21/246	10	{with inserted cutting elements}	B23F21/24	B23F21/24		
B23F21/248	11	{in exchangeable arrangement}	B23F21/24	B23F21/24		18
B23F21/26	8	Broaching tools	B23F21/26	B23F21/26		65
B23F21/262	9	{with inserted cutting elements (B23F21/266 and B23F21/268 take precedence)}	B23F21/26	B23F21/26		2
B23F21/264	10	{in exchangeable arrangement}	B23F21/26	B23F21/26		6
B23F21/266	9	{mounted on an endless chain or belt}	B23F21/26	B23F21/26		10
B23F21/268	9	{Pot broaches}	B23F21/26	B23F21/26		56
B23F21/28	8	Shaving cutters	B23F21/28	B23F21/28		195
B23F21/282	9	{with inserted cutting elements}	B23F21/28	B23F21/28		4
B23F21/284	10	{in exchangeable arrangement}	B23F21/28	B23F21/28		53
B23F21/286	9	{having the shape of an internal gear}	B23F21/28	B23F21/28		12
B23F21/288	9	{the cutting edges on consecutive teeth being helically arranged}	B23F21/28	B23F21/28		31
B23F23/00	7	Accessories or equipment combined with or arranged in, or specially designed to form part of, gear-cutting machines (accessories or equipment not restricted to gear-cutting machines B23Q)	B23F23/00	B23F23/00		1379
B23F23/003	8	{Generating mechanisms}	B23F23/00	B23F23/00		182
B23F23/006	8	{Equipment for synchronising movement of cutting tool and workpiece, the cutting tool and workpiece not being mechanically coupled}	B23F23/00	B23F23/00		328
B23F23/02	8	Loading, {unloading} or chucking arrangements for workpieces	B23F23/02	B23F23/02		79
B23F23/04	9	Loading {or unloading} arrangements	B23F23/04	B23F23/04		463
B23F23/06	9	Chucking arrangements	B23F23/06	B23F23/06		1904
B23F23/08	8	Index mechanisms	B23F23/08	B23F23/08		356
B23F23/085	9	{of the continuous type}	B23F23/08	B23F23/08		107
B23F23/10	8	Arrangements for compensating irregularities in drives or indexing mechanisms	B23F23/10	B23F23/10		246
B23F23/12	8	Other devices, e.g. tool holders; Checking devices for controlling workpieces in machines for manufacturing gear teeth	B23F23/12	B23F23/12		856
B23F23/1206	9	{Tool mountings}	B23F23/12	B23F23/12		149
B23F23/1212	10	{using fluid pressure means}	B23F23/12	B23F23/12		25
B23F23/1218	9	{Checking devices for controlling workpieces in machines for manufacturing gear teeth}	B23F23/12	B23F23/12		307
B23F23/1225	9	{Arrangements of abrasive wheel dressing devices on gear-cutting machines (dressing devices per seB24B53/00)}	B23F23/12	B23F23/12		377
B23F23/1231	10	{using a gear-shaped dressing tool}	B23F23/12	B23F23/12		73
B23F23/1237	9	{Tool holders}	B23F23/12	B23F23/12		215
B23F23/1243	10	{Hob holders}	B23F23/12	B23F23/12		232
B23F23/125	10	{Face mill holders}	B23F23/12	B23F23/12		87
B23F23/1256	10	{Rack cutter holders}	B23F23/12	B23F23/12		16
B23F23/1262	10	{Grinding disc holders; Disc-type milling-cutter holders}	B23F23/12	B23F23/12		184
B23F23/1268	10	{Face-mill-type grinding wheel holders}	B23F23/12	B23F23/12		24
B23F23/1275	10	{Grinding or honing worm holders}	B23F23/12	B23F23/12		36
B23F23/1281	10	{Honing, shaving or lapping tool holders}	B23F23/12	B23F23/12		162
B23F23/1287	10	{Pinion shaper cutter holders}	B23F23/12	B23F23/12		152
B23F23/1293	9	{Workpiece heads}	B23F23/12	B23F23/12		259
