e21d shafts tunnels galleries large

DE2530340A1 - Selbstvorrueckendes pit expansion rack - Google Patents

E — FIXED CONSTRUCTIONS E21 — EARTH DRILLING; MINING E21D — SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS E21D23/00 — Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of ...

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FCI HOLDINGS DELAWARE, INC., Patent Owner, PITTSBURGH, PA

View FCI HOLDINGS DELAWARE, INC.'s, PITTSBURGH, PA, patent portfolio profile on Patent Buddy. ... E21D SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS 83 1 Subclasses Top Owners F16B DEVICES FOR FASTENING OR 8 ...

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CONTECH ENGINEERED SOLUTIONS LLC, Patent Owner, WEST CHESTER, OH, US

View CONTECH ENGINEERED SOLUTIONS LLC's, WEST CHESTER, OH, US, patent portfolio profile on Patent Buddy. Patent Buddy is the world's most extensive database and networking website for patent attorneys, agents and inventors helping inventors like ...

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e21d shafts; tunnels; galleries; large - Roadheaders

CPC Definition - E21D SHAFTS; TUNNELS; GALLERIES; LARGE ... Methods or apparatus for making or lining tunnels, galleries or large underground chambers, using underground mining methods only, i.e. not involving disturbance of the ground surface.

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SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS (soil-conditioning or soil-stabilising materials C09K 17/00; drilling or cutting machines ...

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 ...

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e21d shafts; tunnels; galleries; large - Roadheaders

Shafts, Tunnels, Galleries, Large Underground … Disclosed is a two-prop shield hydraulic support for large centre to centre distance and ultra-high working resistance in ... CPC E21D 2013.01 - for SpFree - PatentCity E21D 8/00 Shafts not provided for in groups ...

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Tunnels; Galleries; Large underground chambers; Linings therefor E21D Get Price Solutions for Underground Construction agents provide the solution for every geological situation. Anti-Wear & Anti-Dust Hard rock TBMs as well as soft ground TBMs ...

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DE2621674B2 - - Google Patents

E — FIXED CONSTRUCTIONS E21 — EARTH DRILLING; MINING E21D — SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS E21D11/00 — Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings ...

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KR101318667B1 - 이동식 강관추진장치 및 공법 - 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 ...

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Tunnelling - SWIETELSKY

Subway tunnels Galleries, caverns and shafts Rehabilitation of tunnels Civil construction Overview Road and railway buildings ... highly complex excavation geometries, extremely delicate logistics in high-altitude alpine regions as well as sometimes large ...

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how to make tunnels - Roadheaders

Play tunnels can provide young children with hours of active and pretend play fun. The tunnels are economical and easy to make and children can even get involved and help to build and ...

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e21d shafts tunnels - Roadheaders

CPC Definition - E21D SHAFTS; TUNNELS; … Methods or apparatus for making or lining tunnels, galleries or large underground chambers, using underground mining methods only, i.e. not involving disturbance of the ground surface. Techniques and tools for ...

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CPC COOPERATIVE PATENT CLASSIFICATION E FIXED CONSTRUCTIONS EARTH DRILLING; MINING E21 EARTH DRILLING; MINING E21D SHAFTS; TUNNELS; GALLERIES ...

Tunnels; Galleries; Large underground chambers; Linings therefor E21D 11/388 . {having longitudinal cavities communicating with the exterior on the outer side of the lining elements} 11/40 . Devices or apparatus specially adapted for handling or placing units ...

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shafts in tunnels|roadheader mining

CPC Scheme - E21D SHAFTS; TUNNELS; GALLERIES; LARGE ... The following IPC groups are not in the CPC scheme. The subject matter for these IPC groups is classified in the following CPC groups: Get a Price shafts in tunnels-Roadheader For Sales ...

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IPC 7 English version E21D !A-E21D 23/26

20/ 00 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 ...

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underground tunnels made containers

Underground Construction (Tunneling) Introduction The construction of underground tunnels, shafts, chambers, and passageways are essential yet dangerous activities. Get Quote Tunnel construction - Wikipedia In 2017 experiences show that city subway ...

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Underground Construction (Tunneling) Introduction The construction of underground tunnels, shafts, chambers, and passageways are essential yet dangerous activities. Get a Price {Science Projects} Underground Animals - Homemade Tunnels ...

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DE2109354A1 - - Google Patents

Discuss Classifications E — FIXED CONSTRUCTIONS E21 — EARTH DRILLING; MINING E21D — SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS E21D11/00 — Lining tunnels, galleries or other underground cavities, e.g. large ...

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CPC COOPERATIVE PATENT CLASSIFICATION E FIXED CONSTRUCTIONS EARTH DRILLING; MINING E21 EARTH DRILLING; MINING E21D SHAFTS; TUNNELS; GALLERIES ...

Tunnels; Galleries; Large underground chambers; Linings therefor E21D 9/115 . {with cutting tools mounted pivotably or slidable on the head} 9/116 . {by means of non-concentric rotary heads (E21D 9/111 takes precedence)} 9/117 . {mounted for ...

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CPC Scheme - E21D SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS

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 ...

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apparatus and method for large tunnel e21d shafts tunnels galleries large Copyright © 2018 - Coal RoadHeader Machinery ...

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CPC E21D 2013.01 - for SpFree - PatentCity・パテントシティ・・

WebCPC CPC COOPERATIVE PATENT CLASSIFICATION E21D SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS (soil-conditioning or soil-stabilising materials C09K 17/00; drilling or cutting machines for mining or quarrying E21C; safety devices, transport, rescue, ventilation or drainage ...

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M.l.c. & Co Pty Ltd - ABN, ACN, Business names, Former names

IPC Mark: E21D 11/10 Version date of the IPC Classification record: January 1, 2006 Section code: E - fixed constructions Class code: 21 - earth or rock drilling; mining Subclass code: D - shafts; tunnels; galleries; large underground chambers (soil-conditioning or ...

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