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e21d shafts; tunnels; galleries; large

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Gazmick Pty Limited - ABN, ACN, Business names, Former names

20 - setting anchoring-bolts (anchoring bolts for shafts, tunnels or galleries e21d0021000000; means for anchoring structural elements or bulkheads specially adapted to foundation engineering e02d0005740000; dowels or other devices fastened in walls or th

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WIPO - Search International and National Patent Collections

A valve leaflet connecting device includes: a base; and first and second followers extending from the base. A first arm extends from the first follower in a direction away from the second follower and away from the base to define an acute angle between th

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shafts in tunnels - sskcollegedistanceeducation.co.in

CPC Definition - E21D SHAFTS; TUNNELS; GALLERIES; LARGE ... Methods or apparatus for making or lining tunnels, galleries or large underground chambers, ...

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JENNMAR CORPORATION, Patent Owner, PITTSBURGH, PA

view jennmar corporation's, ... e21d shafts; tunnels; galleries; large underground chambers 3 13 . subclasses. ... 90 dec 31, 91 [e21d]

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e21d shafts tunnels galleries large - shivfurniture.in

CPC E21D 2013.01 - for SpFree - PatentCity. E21D 8/00 Shafts not provided for in groups E21D 1/00 to E21D 7/00 Tunnels; Galleries; Large underground ...

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shafts in tunnels|roadheader crusher equipment

Shafts In Tunnels - Image Results Get a free quote; Shafts, Tunnels and Pipelines | WJ Groundwater. WJ are a specialist sub-contractor providing dewatering solutions to facilitate the construction of shafts, tunnels and pipelines.

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KR101612527B1 - 터널 시공공법 - Google Patents

Classifications. E — FIXED CONSTRUCTIONS; E21 — EARTH DRILLING; MINING; E21D — SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS; E21D9/00 — Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or

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EARTH DRILLING, e.g. DEEP DRILLING (mining, quarrying E21C

Making shafts, driving galleries or tunnels E21D E21B 1/00 Percussion drilling (drives used in the borehole E21B 4/00; rotary drilling machines in general B23B) Definition statement This place covers: Machines and methods in which the drilling action is d

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Tunnelling - swietelsky.com

Galleries, caverns and shafts Power plant construction can be an especially technical challenge owing to the highly complex excavation geometries, extremely delicate logistics in high-altitude alpine regions as well as sometimes large inclinations of the

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E21D 21 - Anchoring-bolts for roof, floor, or shaft-lining

Sitemap › E21 - Earth or rock drilling; Mining › E21D - Shafts; Tunnels; Galleries; Large underground chambers › E21D 21 - Anchoring-bolts for roof, floor, or shaft-lining protection.

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underground tunnels made containers - divinemeadows.in

underground tunnels made containers - danceemporium.org. Underground Construction (Tunneling) Introduction The construction of underground tunnels, shafts, chambers, and passageways are essential yet dangerous activities. Get a Price; Tunnel construction

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CPC Scheme - E21D SHAFTS; TUNNELS; GALLERIES; LARGE

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 inse

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US Patent Application for TUNNEL MULTI GALLERY Patent

Additionally, it will be necessary to build a third tunnel and/or a system of galleries and shafts, for local access and the evacuation of people, in the case of accident or fire inside the tunnel. Document EP1191186A1 refers to a tunnel with a separating

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US4929123A - Method for building large span tunnels by means

As is known, tunnels can be classified into the following types: for road communication (road tunnels, railway tunnels, underground railways tunnels or tubes), for hydraulic communication (aqueduct tunnels, sewage tunnels and so on) and mine tunnels or ga

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Dallas Invents: 44 Patents Granted for Week of Dec. 19

Additional embodiments provide for the spinning of nanofiber sheets having arbitrarily large widths. ... shafts, driving galleries or tunnels E21D); OBTAINING OIL ...

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Gewerkschaft Eisenhutte Westfalia, Patent Owner, LUNEN

View Gewerkschaft Eisenhutte Westfalia's, ... E21D SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS 1 15 . ... [E21D, G06F] 5055092 Driving ...

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GB2013757A - Improvements relating to tunnelling

E21D — SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS; E21D11/00 — Lining tunnels, galleries or other underground cavities, …

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EP0393197A4 - Method of forming underground passage and

E — FIXED CONSTRUCTIONS; E21 — EARTH DRILLING; MINING; E21D — SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS; E21D9/00 — Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries

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SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND

E21D SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS ... Anchoring bolts for shafts, tunnels or galleries E21D 21/00 ... CPC Definition - E21D

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underground vertical shafts mill equipment - perkinspreschool.com

Underground coal seams are also mined through vertical shafts and horizontal adits or tunnels, although different excavation patterns, such as room Mining involves unique, mobile and sometimes massive equipment, including vehicles, drill . mills. Each mil

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