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Symbol IPC-Stellen auswählen Titel
A
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HUMAN NECESSITIES
B
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PERFORMING OPERATIONS; TRANSPORTING
C
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CHEMISTRY; METALLURGY
D
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TEXTILES; PAPER
E
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FIXED CONSTRUCTIONS
E01
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BUILDING
E01
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CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES (of tunnels E21D)
E02
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HYDRAULIC ENGINEERINGFOUNDATIONSSOIL-SHIFTING
E03
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WATER SUPPLYSEWERAGE
E04
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BUILDING (layered materials, layered products in general B32B)
E05
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LOCKSKEYSWINDOW OR DOOR FITTINGSSAFES
E06
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DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS, IN GENERALLADDERS
E21
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EARTH OR ROCK DRILLING; MINING
E21
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EARTH OR ROCK DRILLINGMINING
E21B
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EARTH OR ROCK DRILLING (mining, quarrying E21C; making shafts, driving galleries or tunnels E21D)OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS [5]
E21C
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MINING OR QUARRYING
E21D
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SHAFTSTUNNELSGALLERIESLARGE UNDERGROUND CHAMBERS (soil-conditioning or soil-stabilising materials C09K 17/00; cutting machines for mining or quarrying E21C; safety devices, transport, rescue, ventilation or drainage E21F) [2, 6]
E21D 1/00
Shafts
E21D 1/00
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Sinking shafts
E21D 3/00
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Raising shafts, i.e. working upwards from the bottom
E21D 5/00
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Lining shaftsLinings therefor (E21D 11/00 takes precedence) [3]
E21D 7/00
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Shaft equipment, e.g. timbering within the shaft
E21D 9/00
TunnelsGalleriesLarge underground chambersLinings therefor (galleries protecting against falling rocks or avalanches E01F 7/04; pressure galleries, galleries specially adapted to house pressure water conduits E02B 9/06; sewers E03F) [3, 6]
E21D 9/00
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Tunnels or galleries, with or without liningsMethods or apparatus for making thereof (linings per se E21D 11/00)Layout of tunnels or galleries [3]
E21D 11/00
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Lining tunnels, galleries or other underground cavities, e.g. large underground chambersLinings thereforMaking such linings in situ, e.g. by assembling (E21D 15/00 to E21D 23/00 take precedence; specially for shafts E21D 5/00; lining pressure water galleries, linings therefor E02B 9/06) [2]
E21D 13/00
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Large underground chambersMethods or apparatus for making them (lining E21D 11/00) [6]
E21D 15/00
Working-face supports
E21D 15/00
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Props (in the building art E04G 25/00)Chocks
E21D 15/02
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Non-telescopic props
E21D 15/04
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. . with wooden prop parts joined by double conical connectors
E21D 15/06
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. . with parts joined by a lock, with or without slight axial adjustability
E21D 15/08
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. . . with toggle joint connection
E21D 15/10
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. . . with dog-clutch or pin-and-hole connection
E21D 15/12
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. . . with locking devices located near head or foot
E21D 15/14
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Telescopic props (general means for fixing telescopic parts together F16B)
E21D 15/15
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. . Means counteracting entry of dirtBuilt-in cleaning devices
E21D 15/16
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. . with parts held together by positive means, with or without relative sliding movement when the prop is subject to excessive pressure
E21D 15/18
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. . . with one part resting on a supporting medium, e.g. rubber, sand, bitumen, lead, located in the other part, with or without expulsion or displacement of the medium upon excessive pressure
E21D 15/20
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. . . with pawl, pin, cross-piece, or the like engaging with ratchet teeth, notches, holes, or the like spaced apart at intervals
E21D 15/22
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. . . with member, pin, cross-piece, or the like ruptured, sheared through, or permanently deformed upon excessive pressure
E21D 15/24
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. . . with axial screw-and-nut, rack-and-worm, or like mechanism
E21D 15/26
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. . . . with screw, worm, or the like not self-locking but normally prevented from rotation by friction members which slip upon excessive pressure
E21D 15/28
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. . with parts held relatively to each other by friction or gripping, e.g. using wedges
E21D 15/30
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. . . by means expanded or contracted by pressure applied through the medium of a fluid or quasi-fluid, e.g. rubber
E21D 15/32
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. . . by a deformable collar
E21D 15/34
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. . . by axially-moving balls, rollers, or the like
E21D 15/36
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. . . by a tiltable collar surrounding one or both parts
E21D 15/38
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. . . with longitudinally-divided upper or lower prop parts, e.g. interfitting laminations
E21D 15/40
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. . . Collar or other support gripped to one or both parts by toggle-action, cam, or other member pivoted or similarly mounted
E21D 15/42
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. . . with special parts to influence the friction
E21D 15/43
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. . . Details of wedges (friction linings or pads E21D 15/42)
E21D 15/44
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. . Hydraulic, pneumatic, or hydraulic-pneumatic props
E21D 15/45
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. . . having closed fluid system, e.g. with built-in pumps or accumulators
E21D 15/46
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. . with load-measuring deviceswith alarm devices
E21D 15/48
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Chocks or the like
E21D 15/50
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Component parts or details of props (E21D 15/43 , E21D 15/58 , E21D 15/60 take precedence)
E21D 15/502
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. . Prop bodies characterised by their shape, e.g. of specified cross-section
E21D 15/51
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. . specially adapted to hydraulic, pneumatic, or hydraulic-pneumatic props, e.g. arrangements of relief valves
E21D 15/52
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. . Extensible units located above or below standard props
E21D 15/54
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. . Details of the ends of props (for permitting step-by-step movement E21D 23/06)
E21D 15/55
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. . . of prop heads
E21D 15/56
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. . Details of locks of telescopic props
E21D 15/58
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Devices for setting props
E21D 15/582
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. . for mechanical props
E21D 15/59
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. . for hydraulic, pneumatic, or hydraulic-pneumatic props
E21D 15/60
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Devices for withdrawing props or chocks
E21D 17/00
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Caps for supporting mine roofs
E21D 19/00
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Provisional protective covers for working space (E21D 9/06 , E21D 23/00 take precedence) [3]
E21D 20/00
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Setting anchoring-bolts (anchoring bolts for shafts, tunnels or galleries E21D 21/00; means for anchoring structural elements or bulkheads specially adapted to foundation engineering E02D 5/74; dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose F16B 13/00) [5]
E21D 21/00
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Anchoring-bolts for roof, floor, or shaft-lining protection (dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose F16B 13/00) [5]
E21D 23/00
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Mine roof supports for step-by-step movement, e.g. in combination with provisions for shifting of conveyers, mining machines, or guides therefor (shifting of mine conveyers at the working face, per se E21F 13/08)
E21F
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SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINAGE IN OR OF MINES OR TUNNELS [2]
F
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MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
G
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PHYSICS
H
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ELECTRICITY

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