E21C  25/00		ںﵡʤؤФƤۤʿԤޤľѤƩ뤿ΤΡƩ֤ķФţãţãţã	Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam(dislodging machines with slitting means <b>E21C27/02</b>, <b>E21C27/10</b>, <b>E21C27/18</b>)	686
E21C  25/02		ưĤޤϤʾξ׷⹩ˤäƩꤹ뵡	Machines slitting solely by one or more percussive tools moved through the seam	176
E21C  25/04		åƥ󥰥饦ޤϤ¾ιʾ׷ɥӥåȣţ£	Cutting crowns or other tools(percussion drill bits <b>E21B10/36</b>)	311
E21C  25/06		ưžıưϤƤ⤷ʤȤ褤ĤޤϤʾΥåƥ󥰥åɤޤϥåƥ󥰥ɥˤäƩꤹ뵡	Machines slitting solely by one or more cutting rods or cutting drums which rotate, move through the seam, and may or may not reciprocate	1387
E21C  25/08		åƥ󥰥åɤޤϥåƥ󥰥ɥѺܲ	Mountings for the rods or drums	312
E21C  25/10		åɡɥΣ	Rods; Drums	1861
E21C  25/14		ƩݽѶĤΡʥå֤ղäΣţã	with equipment for cleaning the slit(associated with cutter chain machines <b>E21C25/50</b>)	108
E21C  25/16		ĤޤϤʾβžΤꡤåƥ󥰱Ĥޤϥåƥ󥰼֤ˤäƩ뵡	Machines slitting solely by one or more rotating saws, cutting discs, or wheels	521
E21C  25/18		Τꡨġåƥ󥰼	Saws; Discs; Wheels	510
E21C  25/20		ĤޤϤʾαưʤڤ֤ޤϱư륫åˤäƩꤹ뵡åƥ֤ĥ٥	Machines slitting solely by one or more reciprocating sawing implements or reciprocating cutter chains; Shaker conveyors with cutting means	133
E21C  25/22		֤˱äƴŪưĤޤϤʾΥåˤäƩꤹ뵡	Machines slitting solely by one or more cutter chains moving unidirectionally along jibs	98
E21C  25/24		ʿ֤Ĥ	with flat jibs only	100
E21C  25/26		ʤä֤Ĥ	with curved jibs only	50
E21C  25/28		ޤϺΥɡΣ	Chains or chain guides	117
E21C  25/30		Υ	Chain guides	71
E21C  25/32		ʤäüѶ	specially adapted for curved jibs	8
E21C  25/34			Chains	116
E21C  25/36		ѷѤ	Couplings for links	129
E21C  25/40		Ū˷줿ԥåȥ󥯤	having links with integrally formed picks	30
E21C  25/50		Ʃ¤ݽĤΡʲžåɤޤϲžɥղäΣţã	with equipment for cleaning the slit(associated with rotary-rod or rotary-drum machines <b>E21C25/14</b>)	49
E21C  25/52		롼ףţãţãţãţãţã°İʾƩ֤ĵ	Machines incorporating two or more of the slitting means according to groups <b>E21C25/02</b>, <b>E21C25/06</b>, <b>E21C25/16</b>, <b>E21C25/20</b> and <b>E21C25/22</b>	140
E21C  25/54		⤵ʤå֥ޤϥåˤƩꡤޤϥ֥ޤϤƱΤΤˤäڱ̤˱äưĥ⤵ʤˤƩʥۡ٥ˤ뷡Фţãĥꥱ֥ˤʣţã	Slitting by unguided cutter cables or cutter chains or by unguided tools drawn along the working face by cables or the like(dislodging by planing means <b>E21C27/32</b>; propulsion by haulage cables <b>E21C29/14</b>)	91
E21C  25/56		å֥ޤϥåˤƩꡤޤϥ֥ޤϤƱΤΤˤäڱ̤˱äư빩ˤƩꡤξڱ̤ʿԤ˰⤵Ρ㡥٥ˤΡ٥ʿԤʥɤˤΡڱ¦˹٥򲡤ĤΣţã	Slitting by cutter cables or cutter chains or by tools drawn along the working face by cables or the like, in each case guided parallel to the face, e.g. by a conveyor or by a guide parallel to a conveyor(pressing the conveyor equipped with tools toward the working face <b>E21C35/14</b>)	190
E21C  25/58		﹦Ϣ³ƤʤȤˤäƩ򤹤뵡	Machines slitting by drilling hole on hole	204
E21C  25/60		ʮͤޤ¾αΤʮͤˤƩήʮͥΥ֤ͭԥåţãžåإåɤˤʮ̸ήΤλۣţãˡΣ	Slitting by jets of water or other liquid(picks with arrangement of fluid-spraying nozzles <b>E21C35/187</b>; distribution of spraying fluids in rotating cutter-heads <b>E21C35/23</b>)	851
E21C  25/62		Ʊ֤ޤϤξޤϲؤ˿ľڤܤ뵡	Machines for making slits approximately perpendicular to the seams either level with, or above or below the level of, the machine	48
E21C  25/64		ˤäƤޤϼȻٻΤΤ줫ˤäƥɤƩ굡ʼѤ뵡Ūιţã	Slitting machines guided solely by hand and either carried by hand or mounted on supports(hand-held power-operated tools <b>E21C37/22</b>)	144
E21C  25/66		Ѥ°֤Ʃ굡	Machines for making slits with additional arrangements for drilling	488
E21C  25/68		¾μʤˤä줿Τΰư㡥Ѥ߹ߤˤ롤֤Ʃ٤굡ʥۡ٥Σţãåפα£ţã	Machines for making slits combined with equipment for removing, e.g. by loading, material won by other means(slitting machines combined with planing means <b>E21C27/18</b>; removing chippings <b>E21C35/20</b>)	958
E21C  27/00		ؤʪ˷Ф	Machines which completely free the mineral from the seam	676
E21C  27/01		ú¤뤿̤˲ɤ줿	specially adapted for removing overhanging coal	60
E21C  27/02		ƩˤΡʥåɡɥţãΤꡤġ֣ţã󥬥ţã	solely by slitting(rods, drums, for same <b>E21C25/10</b>; saws, discs, wheels <b>E21C25/18</b>; chains, chain guides, for same <b>E21C25/28</b>)	1149
E21C  27/04		ŪƩ֤ޤϤ⤿ʤե졼˥ɤ줿ܤκˤ	by a single chain guided on a frame with or without auxiliary slitting means	91
E21C  27/06		žե졼Ĥ	with a slewing frame	122
E21C  27/08		˹ʪں魯°֤Ĥ	with additional means for cutting the mineral into blocks	67
E21C  27/10		Ʃ˺դξѤΤ	by both slitting and breaking-down	160
E21C  27/12		ʪɽ̤˿ľǷͿ뤳ȤˤäƸŪ˺դΡ㡥׷⹩	breaking-down effected by acting on the vertical face of the mineral, e.g. by percussive tools	436
E21C  27/14		¤¦̤ϤޤϰϤä뤳ȤˤäƸŪ˺դΡ㡥ӤˤΡʹˤ˺դΣţã	breaking-down effected by force or pressure applied to side of slit, e.g. by wedges(breaking-down by means inserted in boreholes <b>E21C37/00</b>)	102
E21C  27/16		Ʃ˺դξ򤪤ʤ֤Ĥ	with means for both slitting and breaking-down	57
E21C  27/18		Ʃȥۡ٥ξѤˤ	by both slitting and planing	135
E21C  27/20		ž·ˤʤʪηФ	Mineral freed by means not involving slitting	432
E21C  27/22		˺֤äžˤΡ㡥ӷɥ	by rotary drills with breaking-down means, e.g. wedge-shaped drills	1152
E21C  27/24		ڱ̤˺Ѥߥ֤ˤ	by milling means acting on the full working face	1226
E21C  27/26		ڱ̤˺Ѥܶᤷäåˤ	by closely adjacent cutter chains acting on the full working face	110
E21C  27/28		˺֤ä׷⼰䵡ˤΡ㡥ӷ	by percussive drills with breaking-down means, e.g. wedge-shaped tools	422
E21C  27/30		Ф򤹤ĤܡХĤޤϥåפˤ	by jaws, buckets, or scoops that scoop-out the mineral	400
E21C  27/32		Ѥ߹֤뤫ޤʤĴǤ뤫ޤϤǤʤۡ٥ˤΡʾ׷⼰ۡ٥ţã	by adjustable or non-adjustable planing means with or without loading arrangements(by percussed planing means <b>E21C27/46</b>)	963
E21C  27/34		֥ޤϺˤäڱ̤˱äƿʤ뵡	Machine propelled along the working face by cable or chain	575
E21C  27/35		ץ饦	Ram-ploughs	36
E21C  27/36		ڱ̤˱äƼưʤ뵡	Machine self-propelled along the working face	53
E21C  27/38		Ż߾֤Ǳ߸̾ں魯뵡	Machine stationary while planing in an arc	29
E21C  27/40		ڱ̤˱äƺưȤι	Machine and its planing tool making alternative step-wise movements along the working face	21
E21C  27/42		졼ѤޤϽȢ	combined with scraper or collector box	137
E21C  27/44		ۡ٥ʥաʺιѥԥåţã	Planing knives(mining picks <b>E21C35/18</b>)	155
E21C  27/46		׷⼰ۡ٥ˤ	by percussed planing means	217
E21C  29/00		Ʃ굡ޤؤʪ˷Фο	Propulsion of machines for slitting or completely freeing the mineral from the seam	682
E21C  29/02		ФϤƯˤ	by means on the machine exerting a thrust against fixed supports	484
E21C  29/04		֥ޤϺˤ	by cable or chains	174
E21C  29/06		ڱ̤˰üޤξü	anchored at one or both ends to the mine working face	37
E21C  29/08		ʥ٥Τߤθţƣ	Anchoring arrangements(for anchoring of conveyors only <b>E21F13/00</b>)	88
E21C  29/10		ޤƱ֤ͤȶƯ륱֥ޤϥ	Cable or chain co-operating with a winch or the like on the machine	335
E21C  29/12		֥ޤϥ󤫤ߤ˸ꤷΥ줿ꤹʬФƲꤹ뤳Ȥˤäƿʤ뵡	Machines propelled by thrust or pull against a part alternately anchored to, and released from, a cable or chain	20
E21C  29/14		֥ޤϥˤäƵڱ̤˱äư	by haulage cable or chain pulling the machine along the working face	294
E21C  29/16		֥ޤϥޤϤμʡʥ̣£ġ	Winches or other means for pulling cable or chain(winches in general <b>B66D</b>)	246
E21C  29/18		ȥ֥ޤϥȤηޤΥæ	Coupling and uncoupling machine to cable or chain	42
E21C  29/20		֥ޤϥ»Ѱ֤Ĥ	with safety devices operating in the event of breakage of the cable or chain	160
E21C  29/22		֤ˤΡ̵µˤΡޤϤषΤˤ	by wheels, endless tracks, or the like	1496
E21C  29/24		ưȥå	Trucks carrying the machine while working	105
E21C  29/26		ȥåεΰ֤Ĵ֤᤹Ĥ	with means for adjustably positioning the machine on the truck	31
E21C  29/28		Τι⤵Ĵ᤹	adjusting the height of the whole machine	17
E21C  31/00		Ʃ굡ޤؤʪ˷Фζư	Driving means incorporated in machines for slitting or completely freeing the mineral from the seam	794
E21C  31/02		ںޤ˺	for cutting or breaking-down devices	1990
E21C  31/04		žȾ׷ξưͿ	imparting both a rotary and reciprocating motion	121
E21C  31/06		ɥ쥹֥ޤϥˤäƤʤ	actuated by an endless cable or chain	97
E21C  31/08		Ĵʬ	for adjusting parts of the machines	627
E21C  31/10		βưʬ	for slewing parts of the machines	309
E21C  31/12			Component parts	227
E21C  33/00		Ʃ굡ޤؤʪ˷ФΰưѥȥåޤϤ¾	Trucks or other devices for transporting machines for slitting or completely freeing the mineral from the seam	187
E21C  33/02		ȥåѤ߹֤ޤϥȥåߤ֤Ĥ	with equipment for loading or unloading the machine on to, or from, the truck	46
E21C  35/00		롼ףţãţãţãޤϣţãʬवʤƩ굡ޤؤʪ˷ФκΤ°	Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups <b>E21C25/00 to E21C33/00</b> , <b>E21C37/00</b> or <b>E21C39/00</b>	4928
E21C  35/02		ưʬκ	Locking equipment for slewable parts	68
E21C  35/04		֡ʤѥ֥ޤϥ»κݤ˺ưΣţã	Safety devices(operating in the event of breakage of a haulage cable or chain <b>E21C29/20</b>)	1751
E21C  35/06		֤δä˴ؤѶ	Equipment for positioning the whole machine in relation to its sub-structure	505
E21C  35/08		Υ	Guiding the machine	786
E21C  35/10		ڱ̤ܤեˤ	by feelers contacting the working face	108
E21C  35/12		٣ѥ٥˱褦	along a conveyor for the cut material	903
E21C  35/14		ڱ̤˥٥򲡤Ĥ	Equipment for pressing the conveyor towards the working face	248
E21C  35/16		ŷ׻ݡƤ󡤤ޤ¾λٻ֤Ѥ	by making use of the timbering, filling, or other supports	127
E21C  35/18		ιѥԥåΤΥۥʥۡ٥ѥʥգţãˡΣ	Mining picks; Holders therefor(planing knives <b>E21C27/44</b>)	2898
E21C  35/183		׺ʪޤؤͭΡΣ	with inserts or layers of wear-resisting material	1407
E21C  35/187		ήʮͥΥ֤ͭΡʥΥؤήΤζţãˡΣ	with arrangement of fluid-spraying nozzles(supply of fluid to the nozzles <b>E21C35/22</b>)	422
E21C  35/19		ԥåޤϥۥꤹʡΣ	Means for fixing picks or holders	1365
E21C  35/193		ʸȤƥܥȤѤΡΣ	using bolts as main fixing elements	544
E21C  35/197		ʸȤƥ꡼֡ĤޤΤΤѤΡΣ	using sleeves, rings or the like, as main fixing elements	593
E21C  35/20		åפν֤ΰ̷㡥٥ؤѤ߹	General features of equipment for removal of chippings, e.g. for loading on conveyor	3086
E21C  35/22		ԼȯɻߤޤϽήʮͥΥĥԥåţãΤˡޤ֣ţ£	Equipment for preventing the formation of, or for removal of, dust(picks with arrangement of fluid-spraying nozzles <b>E21C35/187</b>; methods or apparatus for flushing boreholes <b>E21B21/00</b>)	3153
E21C  35/23		žåإåɤˤʮ̸ήΤλۡΣ	Distribution of spraying-fluids in rotating cutter-heads	454
E21C  35/24		ƩޤϹʪ˷Ф̤ߤ줿̣֡ǣ	Remote control specially adapted for machines for slitting or completely freeing the mineral(control in general <b>G05</b>)	2372
E21C  37/00		Ѥ߹֤ͭ뤫ޤͭʤФΤ¾ˡޤ֡ʹ¤ˤ˺դΣţã	Other methods or devices for dislodging with or without loading(breaking-down by means inserted in slits <b>E21C27/14</b>)	2515
E21C  37/02		Ӥˤ	by wedges	803
E21C  37/04		ɤ˵ŪϤʬŪˤ֤ˤ	by devices with parts pressed mechanically against the wall of a borehole	385
E21C  37/06		˿尵ޤ϶򤫤뤳Ȥˤ	by making use of hydraulic or pneumatic pressure in a borehole	504
E21C  37/08		ɤФʬŪ˰Ϥ򤫤ԥȥ󡤥ץ󥸥㡤ޤΤΤͭ	Devices with pistons, plungers, or the like pressed locally against the wall of the borehole	358
E21C  37/10		ĥ󥰤	Devices with expanding elastic casings	277
E21C  37/12		ǽ˹ⰵǤޤϢ³ƹⰵΤʮͤ뤳ȤˤΡ㡥̮ưˤΡȥå¤ĥˤΡʿʮͤˤƩţãˤˣƣġ	by injecting into the borehole a liquid, either initially at high pressure or subsequently subjected to high pressure, e.g. by pulses, by explosive cartridges acting on the liquid(slitting by jets of water <b>E21C25/60</b>; blasting by explosives <b>F42D</b>)	1029
E21C  37/14		ˤΡȯˤΡΤˤ	by compressed air; by gas blast; by gasifying liquids	851
E21C  37/16		ˤΤޤǮ̤ˤƱͤˡˤΡǮѤţ£	by fire-setting or by similar methods based on a heat effect(drilling by use of heat <b>E21B7/14</b>)	562
E21C  37/18		ŵŪʤΤˤ	by electricity	829
E21C  37/20		ĶȤˤΡΣ	by ultrasonic waves	49
E21C  37/22		ʪηФ̤ѤưޤȾưʼˤäƤѤƩ굡ţã	Hand tools or hand-held power-operated tools specially adapted for dislodging minerals(slitting machines guided solely by hand <b>E21C25/64</b>)	406
E21C  37/24		ԥåϥޡʶϥޡ̣£ġ׷⼰﹦ţ£	Pick hammers(pneumatic hammers in general <b>B25D</b>; percussion drilling <b>E21B1/00</b>)	878
E21C  37/26		ޤϰʾΤȤ˴ޤޤʤ¾ں﹩	Chisels or other cutting tools not mentioned before	154
E21C  39/00		ʪιŤ¾򸽾ǻ֡㡥Ŭκη֤˾Ϳ	Devices for testing <u>in situ</u> the hardness or other properties of minerals, e.g. for giving information as to the selection of suitable mining tools	2575
E21C  41/00		ϲޤɽ̺ιˡʣţãͥˡΤ߷סťúѣţãˡΣ	Methods of underground or surface mining(<b>E21C45/00</b> takes precedence);Layouts therefor(for peat <b>E21C49/00</b>)	1966
E21C  41/16		ϲιˡʤΤκηţãţãˡΤ߷סΣ	Methods of underground mining(winning machines therefor <b>E21C25/00 to E21C39/00</b> );Layouts therefor	2486
E21C  41/18		úޤ̵úѡΣ	for brown or hard coal	5123
E21C  41/20		ޤϥѡΣ	for rock salt or potash salt	374
E21C  41/22		ѡ㡥۾ιۡΣ	for ores, e.g. mining placers	2831
E21C  41/24		۾ѡΣ	for oil-bearing deposits	442
E21C  41/26		ɽ̺ιˡϪŷۻκúޤϹФαѵţãˡΤ߷סΣ	Methods of surface mining(machines for obtaining, or the removal of, materials in open-pit mines <b>E21C47/00</b>);Layouts therefor	1497
E21C  41/28		úޤ̵úѡΣ	for brown or hard coal	317
E21C  41/30		ѡ㡥۾ιۡΣ	for ores, e.g. mining placers	377
E21C  41/32		ɽ̺ιϰγŪΤڤνޤϺѵޤˡ££ᤷѵţƣˡΣ	Reclamation of surface-mined areas(machines or methods for treating or working soil for agricultural purposes <b>A01B77/00</b>, <b>A01B79/00</b>; machines for back-filling <b>E02F5/22</b>)	493
E21C  45/00		Ϻιˡϥ˥ʣţãͥˡΣ	Methods of hydraulic mining; Hydraulic monitors(<b>E21C25/60</b> takes precedence)	2252
E21C  45/02		̮ưήʮήȯʡΣ	Means for generating pulsating fluid jets	99
E21C  45/04		ⰵΤλѤˤΡΣ	by use of highly pressurised liquid	192
E21C  45/06		̥λѤˤΡΣ	by use of compressed gases	57
E21C  45/08		ϥ˥μưޤϱΣ	Automatic or remote control of hydraulic monitors	42
E21C  47/00		ϪŷۻκúޤϹФαѵťúκμţã	Machines for obtaining, or the removal of, materials in open-pit mines(obtaining peat <b>E21C49/00</b>)	1213
E21C  47/02		úúޤʪѡʷﵡޤں̣ţơˡΣ	for coal, brown coal, or the like(dredgers or soil-shifting machines in general <b>E02F</b>)	636
E21C  47/04		μ֤ȶƱǻѤǤ륳٥֥åˡΣ	Conveyor bridges used in co-operation with the winning apparatus	200
E21C  47/06		μ֤ȶƱǻѤ륱֥륦٥ϲţƣ	Cableway conveyors used in co-operation with the winning apparatus(underground hauling <b>E21F13/00</b>)	44
E21C  47/08		ϤߤڤФ֡㡥úؤδ֤ˤϤޤä	Devices for cutting-out partings, e.g. layers of sand between seams of coal	31
E21C  47/10		СޤǴںμ	for quarrying stone, sand, gravel, or clay	1162
E21C  49/00		ťúκμ表Τεťúνãơ	Obtaining peat; Machines therefor(treating peat <b>C10F</b>)	1096
E21C  49/02		ˤ	by excavating	82
E21C  49/04		ťúϤηˤ	by digging in the form of peat sods	112
E21C  50/00		¾ʬवʤ椫ιʪκμʥ޴صޤϤιʣţƣʪΰޤʬΥΤ֣ţƣͤ塤ϲޤͻʪμ褹뤿äŬ礷ˡޤ֣ţ£åѣǣΣˡΣ	Obtaining minerals from underwater, not otherwise provided for(suction dredgers or component parts thereof <b>E02F3/88</b>; equipment for conveying or separating excavated material <b>E02F7/00</b>; dippers <b>G01N1/12</b>)	1824
E21C  50/02		αưˤΡ̤ŪΤŬ礷ޤͷʪ££ˡΣ	dependent on the ship movements(vessels or floating structures adapted for special purposes <b>B63B35/00</b>)	448
E21C  51/00		ϵ絤λ񸻤֤ޤˡʱҹԣ£ǡˡΣ	Apparatus for, or methods of, winning materials from extraterrestrial sources(cosmonautics <b>B64G</b>)	154
