D21F   1/00		Ϣ³澶浡μ	Wet end of machines for making continuous webs of paper	6823
D21F   1/02		Ĺ־浡Υإåɥܥå	Head boxes of Fourdrinier machines	2753
D21F   1/04		־浡Υإåɥܥå	Head boxes of cylinder machines	565
D21F   1/06		ѥή̤Ĵ	Regulating pulp flow	1318
D21F   1/08		ǻĴ	Regulating consistency	791
D21F   1/10			Wire-cloths	1974
D21F   1/12		ηѤ	Seams thereof	169
D21F   1/14			welded	93
D21F   1/16		˥	sewn	61
D21F   1/18		֤°ʬΥ	Shaking-apparatus for wire-cloths and associated parts	309
D21F   1/20		Ĺ־浡	in Fourdrinier machines	188
D21F   1/22		־浡	in cylinder machines	3
D21F   1/24		֤ηС徺ޤϲߵ	Tilting, raising, or lowering mechanisms for wire-cloths	130
D21F   1/26		Ĺ־浡	in Fourdrinier machines	36
D21F   1/28		־浡	in cylinder machines	8
D21F   1/30		֤εŪ»ɸ	Protecting wire-cloths from mechanical damage	141
D21F   1/32		֤ޤϥեȤ	Washing wire-cloths or felts	1690
D21F   1/34		ץ졼ѥפι¤ޤ	Construction or arrangement of spraying pipes	375
D21F   1/36		ⵡ	Guiding mechanisms	675
D21F   1/38		ѥå	Pads	45
D21F   1/40			Rolls	483
D21F   1/42		å	Jets	64
D21F   1/44		ޡ	Watermarking devices	443
D21F   1/46		ǥ	Dandy rolls	275
D21F   1/48		۰֡ʥģƣ	Suction apparatus(suction rolls <b>D21F3/10</b>)	1416
D21F   1/50		Τ륵ܥå	Suction boxes with rolls	286
D21F   1/52		Τʤܥå	Suction boxes without rolls	974
D21F   1/54		ߥ֡㡥եå	Skimming devices, e.g. froth ledges	92
D21F   1/56		ǥåե졼	Deckle frame arrangements	105
D21F   1/58		ǥå륹ȥå	Deckle straps	31
D21F   1/60			Cylinder moulds	388
D21F   1/62		ɥȥå	Sand traps	35
D21F   1/64		̵	Magnetic separators	14
D21F   1/66		æޤϲκƻ	Pulp catching, de-watering, or recovering; Re-use of pulp-water	2149
D21F   1/68		ήΥλ	using hydrocyclones	51
D21F   1/70		ˢˤ	by flotation	278
D21F   1/72		ϳͤѤ	using funnels	36
D21F   1/74		֤Ĥ	using cylinders	129
D21F   1/76		۰ˤ	with suction	89
D21F   1/78		̤ˤ	with pressure	70
D21F   1/80		̵ü֤Ѥ	using endless screening belts	208
D21F   1/82		ݶŽʪźä	adding fibre agglomeration compositions	137
D21F   2/00		鰵ؤϢ³ɤΰܾ	Transferring continuous webs from wet ends to press sections	677
D21F   3/00		Ϣ³澶浡ΰ	Press section of machines for making continuous webs of paper	1400
D21F   3/02		åȥץ쥹	Wet presses	3217
D21F   3/04			Arrangements thereof	1409
D21F   3/06		Ĵ	Means for regulating the pressure	395
D21F   3/08		ץå	Pressure rolls	2127
D21F   3/10		롤㡥	Suction rolls, e.g. couch rolls	1358
D21F   5/00		Ϣ³澶浡δ	Dryer section of machines for making continuous webs of paper	2773
D21F   5/02		Ǵ礹	Drying on cylinders	3049
D21F   5/04		ĤޤϤʾδ祷ǹԤʤ	on two or more drying cylinders	1451
D21F   5/06		Ĵ	Regulating temperature	223
D21F   5/08		⥹ݥȤ	Arrangement of steam points in the cylinders	81
D21F   5/10		ζŽ̿ν	Removing condensate from the interior of the cylinders	690
D21F   5/12		ⴥ	Festoon drying	27
D21F   5/14		Ѥˤɤ	Drying webs by applying vacuum	246
D21F   5/16		ŵŪǮˤɤ	Drying webs by electrical heating	447
D21F   5/18		Ǯˤɤ	Drying webs by hot air	1964
D21F   5/20		Ǯ	Waste heat recovery	541
D21F   7/00		Ϣ³澶浡Τ¾κ	Other details of machines for making continuous webs of paper	4174
D21F   7/02		Ūư	Mechanical driving arrangements	732
D21F   7/04		ڤ	Paper-break control devices	455
D21F   7/06		ؤθɽޤĴ	Indicating or regulating the thickness of the layer; Signal devices	812
D21F   7/08		ե	Felts	2960
D21F   7/10		ηѤ	Seams thereof	802
D21F   7/12			Drying	405
D21F   9/00		Ϣ³澶浡	Complete machines for making continuous webs of paper	2329
D21F   9/02		Ĺּ	of the Fourdrinier type	1424
D21F   9/04		ּ	of the cylinder type	809
D21F  11/00		浡ǻ桤桤եСܡѼ桤Ĺʪ¤빩	Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibreboard production, on paper-making machines	4452
D21F  11/02		Ĺּ	of the Fourdrinier type	527
D21F  11/04		ޤϤʾؤ˾碌ޤϸ	paper or board consisting of two or more layers	1018
D21F  11/06		ּ	of the cylinder type	224
D21F  11/08		ޤϤʾؤ˾碌ޤϸ	paper or board consisting of two or more layers	355
D21F  11/10		ꤹ¤	Making imitation mould-made paper	25
D21F  11/12		ȷޤʥܡ¤	Making corrugated paper or board	610
D21F  11/14		ʡɻޤϵۼ¤	Making cellulose wadding, filter- or blotting paper	1166
D21F  11/16		ӤޤϤͤѾ¤	Making paper strips for spinning or twisting	114
D21F  13/00		桤ѥĻޤϸΤޤϥեСܡѼϢ³Ȥ¤ˡޤ֡ⷿˤĻϢ³Ȥ¤ģʡ桤ѥĻޤϸϢ³ȷˤ봥ƣ¡	Methods or apparatus for making discontinuous sheets of paper, pulpboard, or cardboard, or of wet web, for fibreboard production(making discontinuous sheets of board in moulds <b>D21J</b>; drying paper, pulpboard, or cardboard, in discontinuous-sheet form <b>F26B</b>)	1048
D21F  13/02		ꤹ¤	Making hand-made paper	481
D21F  13/04		Ļ澶¤	on cylinder board machines	63
D21F  13/06		Ϲ礤	Format rolls	25
D21F  13/08		ưǥ	Automatic cut-off rolls	81
D21F  13/10		ܡɥץ쥹Ѥ	using board presses	110
D21F  13/12		ץ졼ȥץ쥹	Platen presses	51
