| Patents for E02F 5 - Dredgers or soil-shifting machines for special purposes (6,683) |
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| 06/26/2013 | CN203022043U Slurry collecting mechanism used for underground water sump coal slurry cleaning machine |
| 06/26/2013 | CN203022042U Cutter of spin grooving machine |
| 06/26/2013 | CN203022041U Double-helical trenching machine |
| 06/26/2013 | CN203022040U Dredging device |
| 06/26/2013 | CN203022034U Bucket elevator suitable for cleaning up impurities in water groove beside belt |
| 06/26/2013 | CN103174183A River mouth bar sand dredging device powered by wind energy and wave energy |
| 06/26/2013 | CN103174182A Low-power dissipation diversion type channel sediment disturbing dredging system |
| 06/26/2013 | CN101736769B Double-chain saw slotting machine |
| 06/20/2013 | WO2013088167A1 Trench cutting apparatus and method |
| 06/20/2013 | CA2854453A1 Trench cutting apparatus and method |
| 06/19/2013 | CN203008017U Dredging device for hydraulic engineering |
| 06/19/2013 | CN103161187A Bulldozer and earth-loosening device thereof |
| 06/19/2013 | CN102587435B Open hydraulic system for horizontal chain-blade type integral-cutting wall forming equipment |
| 06/19/2013 | CN102352642B Pneumatic slotting drill bit |
| 06/13/2013 | WO2013082904A1 Dead-weight positioning pulley baffle rod frame and crane lifting arm |
| 06/13/2013 | US20130145657 Trenching System |
| 06/12/2013 | CN202990001U Amphibious river channel working platform |
| 06/12/2013 | CN202989996U Sludge dredging device |
| 06/12/2013 | CN202989995U Novel drill rod of hydraulic breaking hammer |
| 06/12/2013 | CN202989994U Anti-dropping connecting hinge pin for hydraulic crusher and excavator |
| 06/12/2013 | CN202989993U Novel grinding fixing device of piston of hydraulic breaking hammer |
| 06/12/2013 | CN202989992U Floating self-pressurization type sewage disposal scraper pan |
| 06/12/2013 | CN202989991U Double-screw hole-forming machine |
| 06/12/2013 | CN202989990U Semi-circle shovel for burying natural gas compression station anode |
| 06/12/2013 | CN202989989U Cylindrical shovel for burying natural gas compression station anode |
| 06/12/2013 | CN202989988U Double circular saw slot sawing machine |
| 06/12/2013 | CN202989987U Miniature double-cutting-blade trencher |
| 06/12/2013 | CN202989986U Double-arm groover |
| 06/12/2013 | CN202989985U Spinning groover |
| 06/12/2013 | CN202989984U Double-shaft-end motor-driven trencher |
| 06/12/2013 | CN202989983U Scraper aqueduct-making machine |
| 06/12/2013 | CN202989982U Continuous-wall hydraulic trenching machine |
| 06/12/2013 | CN202989979U Dredging reamer |
| 06/12/2013 | CN202989972U Underground relief trolley |
| 06/12/2013 | CN202989967U Roadway repair machine |
| 06/12/2013 | CN202989951U Underground diaphragm wall grooving positioning and guiding device |
| 06/12/2013 | CN103147477A Cutting box of slot milling machine |
| 06/12/2013 | CN102277887B Fully submerged dredge boat |
| 06/06/2013 | DE10115456B4 Verlegepflug mit schürzenartiger Verdrängervorrichtung Plough with skirt-like displacer |
| 06/05/2013 | CN202969447U Breaking hammer working speed control device |
| 06/05/2013 | CN202969440U Excavator bucket |
| 06/05/2013 | CN202969438U Screening crushing hopper |
| 06/05/2013 | CN202969437U Riverbed desilting bucket of excavator |
| 06/05/2013 | CN202969436U Environment-friendly dredging grab |
| 06/05/2013 | CN202969435U Perpendicularity and section correction mechanism for pile holes |
| 06/05/2013 | CN202969434U Negative-pressure pile hole earth extractor |
| 06/05/2013 | CN202969433U Electric-pole deep-pit soil extracting device |
| 06/05/2013 | CN202969432U Guiding device of semiconductor type diaphragm wall grab bucket lifting steel wire rope |
| 06/05/2013 | CN202969431U Arm head guide device and double-wheel slot milling machine with the same |
| 06/05/2013 | CN202958199U Underwater weeding device |
| 06/05/2013 | CN103140643A Boring machine having head part |
| 06/05/2013 | CN103132555A Dredging and siltation flushing ship |
| 06/05/2013 | CN102409711B Urban small river dredging ship |
| 06/05/2013 | CN102296656B Method and system for eliminating lake sludge |
| 05/30/2013 | US20130136541 Spring loaded J bar T handle |
| 05/29/2013 | EP2596178A1 Dredger for working on a surface on the sea floor and method for working on the surface |
| 05/29/2013 | CN202954392U Hydraulic vertical-shaft milling head |
| 05/29/2013 | CN202954391U Annular cylindrical mud-feeding shovel |
| 05/29/2013 | CN202954390U Tyre type groove-making machine rack |
| 05/29/2013 | CN202954389U Four-wheel-driving eccentric wall building machine |
| 05/29/2013 | CN202954388U Soil cutting plough grooving machine |
| 05/29/2013 | CN202954387U Pumping reverse-circulation system douche |
| 05/29/2013 | CN202954386U Throwing, grabbing and impacting slotting machine |
| 05/29/2013 | CN202954385U Scissors type slotting machine |
| 05/29/2013 | CN202954383U Weight reduction device of pneumatic dredge pump |
| 05/28/2013 | US8449217 Trench paver attachment |
| 05/22/2013 | CN202945632U Loose pulley type groove making machine |
| 05/22/2013 | CN202945631U Pneumatic deep groove excavation device |
| 05/22/2013 | CN202945630U Pump lifting reverse circulation trenching machine |
| 05/22/2013 | CN202945629U Double-section type aqueduct-making machine frame |
| 05/22/2013 | CN202945628U Curb ditcher |
| 05/22/2013 | CN202945627U Bulldozer shovel blade capable of loosening soil conveniently |
| 05/22/2013 | CN202945598U Y-shaped cast-in-place pile forming machine |
| 05/22/2013 | CN103115712A Method for testing dragging force of rake pipe of trailing suction dredger |
| 05/22/2013 | CN103114620A High-power submersed front-and-back-flow-jetting air-lift submarine pipeline ditching machine and ditching technology |
| 05/22/2013 | CN103114619A Pump suction reverse circulation system irrigation emitter |
| 05/22/2013 | CN103112552A Dredging and slit flushing boat |
| 05/22/2013 | CN102155035B Continuous wall milling machine |
| 05/22/2013 | CN102089479B A gripping organ for load-moving vehicles |
| 05/16/2013 | DE102011086085A1 Attachment device i.e. fluid tank, for excavator for transportation of water, has fastening device for releasable fastening at outer side of excavator structure, and biasing unit temporarily biasing delivery hose |
| 05/15/2013 | CN202936831U Novel hydraulic breaking hammer end cap |
| 05/15/2013 | CN202936830U Connecting device of hydraulic burster guide sleeve and front cylinder body |
| 05/15/2013 | CN202936829U Full-automatic self-cleaning type underground sewage lifting and discharge device |
| 05/15/2013 | CN202936828U Soil throwing type rotary cutter head for machine for furrowing farmland irrigation ditch with trapezoidal section |
| 05/15/2013 | CN202936827U Mining ditcher |
| 05/15/2013 | CN103109023A Vibrating ripper |
| 05/15/2013 | CN103104002A Wall brushing device of double-screw grooving machine |
| 05/15/2013 | CN103104001A Double-screw grooving machine |
| 05/15/2013 | CN103104000A Clay cutting plough grooving machine |
| 05/15/2013 | CN103103996A Loading machine capable of crushing materials and rolling rake materials |
| 05/15/2013 | CN102561438B Control method for tracked walking of chain-knife type diaphragm wall equipment |
| 05/10/2013 | DE202013101540U1 Baggerlöffel Excavator Bucket |
| 05/09/2013 | US20130111786 Digging and backfill apparatus |
| 05/08/2013 | CN202926782U Silt remover support leg telescopic pipe |
| 05/08/2013 | CN202925591U Follow-up device of reel pipe system of trenching machine |
| 05/08/2013 | CN202925590U Gravitational potential energy saving device of trenching machine grab bucket |
| 05/08/2013 | CN202925589U Push-pull rotary type grooving machine |
| 05/08/2013 | CN103088867A Automatic control system for quartering hammers of crawler type hydraulic excavator |
| 05/08/2013 | CN103088862A Excavator |
| 05/08/2013 | CN103088861A Underwater silt remover, underwater silt removing device comprising the same and operation method thereof |