| Patents for E02D 29 - Underground or underwater structures; Retaining walls (15,197) |
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| 08/11/1994 | DE4314302A1 Injection hose for construction joints in concrete structures |
| 08/09/1994 | CA1331286C Earth structures |
| 08/09/1994 | CA1331285C Earth stabilisation |
| 08/04/1994 | WO1994017253A1 Retaining wall consisting of dry-mounted building elements |
| 08/04/1994 | DE4302986A1 Cut-and-cover construction of tunnel or underground garage |
| 08/03/1994 | EP0609040A2 Waterproofing article for concrete joints |
| 08/03/1994 | CN2173278Y Theft-proof well cover |
| 08/03/1994 | CN2173277Y Theft-proof well cover |
| 08/02/1994 | US5333970 Building and shoring blocks |
| 07/27/1994 | EP0607847A1 Manhole for a cylindrically-shaped pump |
| 07/27/1994 | CN2172781Y Multi-functional theft-proof manhole cover |
| 07/21/1994 | WO1994016173A1 Formwork for use by the production of logitudinal structures |
| 07/21/1994 | WO1994016154A1 Modular soil retaining assembly |
| 07/20/1994 | EP0564515B1 A retaining wall structure |
| 07/13/1994 | EP0605792A1 Surface drainage device |
| 07/12/1994 | US5328294 Manhole casting setting fixture |
| 07/12/1994 | US5328291 Locking manhole insert |
| 07/12/1994 | US5327693 Sealing device for concrete joints and process for the introducing of a sealing medium into sealing devices |
| 07/05/1994 | US5326193 Interlocking retaining wall apparatus |
| 07/05/1994 | US5326188 Anchor for manhole cover support |
| 07/05/1994 | CA1330491C Wall with gravity support structure, building element and method for construction thereof |
| 07/01/1994 | CA2086588A1 Concrete block gabion |
| 06/29/1994 | EP0603460A1 Internally reinforced geotechnical structure and process for manufacturing the same |
| 06/29/1994 | EP0603417A1 Drive-in type concrete form for underground wall |
| 06/29/1994 | CN2170326Y Triangle tooth bridge type rubber water-proof belt |
| 06/29/1994 | CN2170325Y Anti-theft drain well |
| 06/28/1994 | US5324135 Locking cover |
| 06/23/1994 | WO1994013890A1 Retaining wall block for use with geogrids |
| 06/23/1994 | DE4337147A1 Shaft manhole cover with frame and lid |
| 06/23/1994 | CA2151955A1 Retaining wall block for use with geogrids |
| 06/22/1994 | CN2169653Y Simple anti-theft detection cover of manhole |
| 06/22/1994 | CN2169652Y Anti-theft manhole cover |
| 06/21/1994 | US5322390 Underwater tunnel and an underwater mooring apparatus to moor the underwater tunnel |
| 06/16/1994 | DE4335112A1 Underground inspection shaft prefab. concrete parts - have structure on profiled outer surfaces for traffic load dissipation |
| 06/16/1994 | DE4241706A1 Drainage ditch with cover securable to ditch body in earth - has cover fastener with clamping spring on ditch body and lug on cover |
| 06/16/1994 | DE4241705A1 Channel for draining surface |
| 06/15/1994 | EP0601447A1 Surface drainage device |
| 06/15/1994 | EP0601446A1 Locking device for a drainage device |
| 06/15/1994 | EP0601445A1 Surface drainage device |
| 06/14/1994 | US5320455 Geocell with facing panel |
| 06/14/1994 | US5320445 Grate riser assembly for use with catch basins and the like |
| 06/11/1994 | CA2111132A1 Means for securing a cover over a drainage channel |
| 06/11/1994 | CA2111131A1 Surface drainage apparatus |
| 06/11/1994 | CA2111128A1 Surface drainage apparatus |
| 06/11/1994 | CA2111127A1 Surface drainage apparatus |
| 06/09/1994 | DE4241264A1 Cover for shaft in tank farm - consists of clamp frame with cover, shaft frame, and two seats of tension devices |
| 06/08/1994 | EP0565554B1 Manhole element made of moulding material |
| 06/08/1994 | CN2168013Y Tension-type antitheft inspection manhole cover |
| 06/08/1994 | CA2106814A1 Manhole frame and method of installation and raising |
| 06/07/1994 | US5318376 Manhole frame |
| 06/01/1994 | CN2167127Y Improved safety cover for well with theft-proof function |
| 06/01/1994 | CN2167126Y Theft-proof cover for well |
| 06/01/1994 | CN2167125Y Theft-proof cover for well |
| 05/31/1994 | US5316407 Manhole cover support |
| 05/25/1994 | CN2166159Y Split cover for cellar |
| 05/25/1994 | CN2166158Y Cover for blind drain |
| 05/25/1994 | CN2166157Y Removable Cover connection device for gulley pot |
| 05/25/1994 | CN1087151A Well cover |
| 05/18/1994 | CN2165160Y Theft-proof gully grate |
| 05/17/1994 | US5312202 Access cover assembly |
| 05/05/1994 | DE4335339A1 Cover for road gully - has hinges, which are vertically adjustable in guides in frame |
| 05/04/1994 | EP0595193A1 An embankment formed by preformed collaborating assemblable elements, in particular for road or railway constructions, and process |
| 05/04/1994 | CN2163824Y Cipher-locked safety cover for manholes |
| 05/04/1994 | CN1086281A Building method for retaining wall in foundation engineering |
| 05/03/1994 | US5308195 Coping construction for a retaining wall |
| 05/03/1994 | US5308192 Method and apparatus for rehabilitating sewage manholes |
| 05/03/1994 | US5308189 Gripping device for retaining a ring member supporting a manhole cover |
| 05/03/1994 | US5308188 Ramp for temporarily elevated utility access hole |
| 04/28/1994 | WO1994009214A1 Polder principle using shielding walls and method for producing said polder |
| 04/28/1994 | DE4236193A1 Underground-drain access shaft - is in plastic annular sections forming double wall filled with free-flowing and hardening material |
| 04/27/1994 | EP0593914A1 Production method for canalisation-related objects comprising frames and covers, more specifically manhole covers |
| 04/27/1994 | CN2163188Y Sewer cover of iron frame terrazzo |
| 04/27/1994 | CN2163187Y Anti-theft well cover apparatus |
| 04/26/1994 | CA1328731C Cast-in-place manhole liner apparatus and method |
| 04/21/1994 | DE4335384A1 Wall to permit plants to grow through it - has intermediate blocks with distance pieces for anchor sections, with connected grooves for accommodating reinforcements |
| 04/21/1994 | DE4237374C1 Manhole cover for highways - has damping inlay strips inserted in grooves of cover and/or frame |
| 04/19/1994 | US5303518 Lined manhole assembly and liner |
| 04/19/1994 | CA1328565C Process for realizing a modular, under-water, practicable connection for crossing water stretches in general, and related equipment |
| 04/14/1994 | WO1994008097A1 Composite masonry block |
| 04/13/1994 | CN2161643Y Safety theft-proof sewage well cover |
| 04/13/1994 | CN2161642Y 防盗井盖 Security covers |
| 04/13/1994 | CN2161641Y Theft-proof safety well cover |
| 04/13/1994 | CN2161640Y 防窃井盖 Theft covers |
| 04/12/1994 | US5302052 Underground work chamber assembly and method for the construction thereof |
| 04/12/1994 | US5301469 Door assembly with multiple torque rod counterbalancing |
| 04/06/1994 | EP0590760A1 Undercut excavation method |
| 04/05/1994 | US5299884 Water lock method and apparatus |
| 04/05/1994 | US5299637 Concrete well |
| 03/31/1994 | WO1994006966A1 Aparatus for cutting free covers in coating, e.g. asphalt coating |
| 03/31/1994 | DE4232725A1 Concrete or artificial stone, profile kerbstone - has basic half-moon shape with profiled contour of continuous chain |
| 03/31/1994 | DE4232724A1 Concrete or artificial stone, profiled kerbstone - has basic shape of slightly cut-off half-moon with profiled contour |
| 03/31/1994 | DE4232723A1 Concrete or synthetic stone, profiled kerbstone set - has basic circular shape with contour formed by sequential arcuated profiles |
| 03/31/1994 | DE4232722A1 Fluted concrete or artificial stone kerbstone - has basic shape of slightly cut-off half-moon with contour of continuous row of small, semicircular arcs |
| 03/23/1994 | EP0588034A2 Superstructure for steet drains and floor drains |
| 03/23/1994 | EP0587971A1 Locking key for a manhole cover |
| 03/23/1994 | CN2159412Y Manhole cover against being stolen |
| 03/23/1994 | CN2159411Y Safety manhole cover against being stolen |
| 03/22/1994 | US5295557 Utility construction safety and work platform |
| 03/22/1994 | US5295535 For detecting leakage from an underground storage tank |
| 03/22/1994 | CA2012286C Concrete block for retaining walls |