D21D   1/00		ӡƥ󥰤ޤϥե˥󥰤ˡۥΥӡ	Methods of beating or refining; Beaters of the Hollander type	765
D21D   1/02		ӡƥ󥰤ˡۥΥӡ	Methods of beating; Beaters of the Hollander type	2127
D21D   1/04		ӡޤϥС	Beater rolls or bars	86
D21D   1/06		٥åɥץ졼	Bed plates	21
D21D   1/08		ѥפ®ưʤͭӡ	Beaters with means for driving the pulp quickly	174
D21D   1/10		ӡȥ٥åɥץ졼ȤȤδ֤ΰĴʤͭӡ	Beaters with means for regulating the pressure between the beater roll and the bed plate	15
D21D   1/12		Ϣ³Ū˥ѥפӽФʤͭӡ	Beaters with means for continuous pulp discharge	12
D21D   1/14		ĤΥӡȿľ۴ĿϩȤͭӡ	Beaters with one beater roll and with vertical stuff circulation canal	61
D21D   1/16		ӡξۤƥѥפ᤹ʤͭӡ	Beaters with means for returning the pulp over the head of the beater roll	4
D21D   1/18		ĤޤϤʾΥӡͭӡ	Beaters with two or more beater rolls	79
D21D   1/20		ե˥󥰤ˡ	Methods of refining	1504
D21D   1/22			Jordans	444
D21D   1/24			Jordan rolls	54
D21D   1/26		٥åɥץ졼	Jordan bed plates	49
D21D   1/28		ܡޤϥåɥߥ	Ball or rod mills	63
D21D   1/30		ǥߥ	Disc mills	2483
D21D   1/32		ϥޡߥ	Hammer mills	406
D21D   1/34		¾Υߥޤϥե	Other mills or refiners	281
D21D   1/36		ľĤ	with vertical shaft	141
D21D   1/38		ʿĤ	with horizontal shaft	203
D21D   1/40		ݤ	Washing the fibres	180
D21D   5/00		Ūʤˤѥ׷դΤ	Purification of the pulp suspension by mechanical means; Apparatus therefor	835
D21D   5/02		ѥפΥȥ졼˥󥰤ޤϥ꡼˥	Straining or screening the pulp	3432
D21D   5/04		եåȥ꡼	Flat screens	1083
D21D   5/06		ꥹ꡼ɥ	Rotary screen-drums	1468
D21D   5/08		ưưȷ礷	combined with a rocking movement	20
D21D   5/10		󥯤	of the tank	3
D21D   5/12		꡼	of the screen	38
D21D   5/14		󥯤ӥ꡼	of the tank and the screen	5
D21D   5/16		꡼ѤΥȥץ졼	Cylinders and plates for screens	810
D21D   5/18		Ϥˤ	with the aid of centrifugal force	523
D21D   5/20		ʿ֤ͭˤ	in apparatus with a horizontal axis	117
D21D   5/22		ľ֤ͭˤ	in apparatus with a vertical axis	346
D21D   5/24		ˤ	in cyclones	391
D21D   5/26		ζʬΥ	De-aeration of paper stock	345
D21D   5/28		ѥפ¢ޤѥ	Tanks for storing or agitating pulp	378
D21D  99/00		Υ֥饹¾Υ롼פʬवʤΣ	Subject matter not provided for in other groups of this subclass	85
