| Patents for E02F 5 - Dredgers or soil-shifting machines for special purposes (6,683) |
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| 08/21/2013 | CN103255792A Electric pole dibble |
| 08/21/2013 | CN102361315B Three synchronous laying construction method of underground cable in sea area |
| 08/15/2013 | WO2013118085A1 Earth working apparatus |
| 08/15/2013 | WO2012102659A8 A laying machine and a blade assembly |
| 08/14/2013 | EP2626473A1 Method for reducing the transfer of vibrations to a cutter suction dredger generated by a cutter head and cutter suction dredger on which such method is applied |
| 08/14/2013 | CN203129227U Scarifier connecting rod |
| 08/14/2013 | CN203129226U Multi-tooth scarifier of bulldozer |
| 08/14/2013 | CN203129225U Overload protective system of scarifier of bulldozer |
| 08/14/2013 | CN203129224U Scarifier of bulldozer |
| 08/14/2013 | CN203129223U Flat pin hole of hydraulic hammer |
| 08/14/2013 | CN203129222U Clay groove manufacturing machine |
| 08/14/2013 | CN203129220U Channel dredging device |
| 08/14/2013 | CN203129209U Ultralarge land leveler |
| 08/14/2013 | CN103243764A Y-shaped pore-forming machine |
| 08/14/2013 | CN103243763A Rectification mechanism of slotting machine |
| 08/14/2013 | CN103243762A Crescent knife groove forming machine |
| 08/14/2013 | CN103243761A Multi-cutter-set grooving machine |
| 08/14/2013 | CN103243760A Gear grooving machine |
| 08/14/2013 | CN103243759A Hydraulic drive trenching machine |
| 08/14/2013 | CN103243758A Ellipsoidal groover |
| 08/14/2013 | CN103243757A Moving frame groover |
| 08/14/2013 | CN103243756A Double-disc trenching machine |
| 08/14/2013 | CN103243749A Crushing and loading bottom ripping machine for coal mine |
| 08/14/2013 | CN102493509B Hanging structure of building work machine, grab bucket and building work machine |
| 08/14/2013 | CN102304916B Construction method of anchor bolt static-pressure extruded and expanded cast-in-place pile and implementation devices thereof |
| 08/07/2013 | CN203113408U Leveling device |
| 08/07/2013 | CN203113407U Dredger reamer for soft strata |
| 08/07/2013 | CN203113406U Paving boat |
| 08/07/2013 | CN203113397U Flattener |
| 08/07/2013 | CN203113392U Multipurpose backhoe type working device of bucket loader |
| 08/07/2013 | CN103233492A Novel digging bucket |
| 08/07/2013 | CN103233490A High-frequency vibrating hammering stone crusher |
| 08/07/2013 | CN102425199B Tri-cone-head pressing grooving plate and grouting slot construction method |
| 08/07/2013 | CN102418358B Power positioning jet-flow spraying type ditcher |
| 08/07/2013 | CN102296655B Cylindrical extruding and expanding device for extruding and expanding for pore-forming in stratum |
| 08/07/2013 | CN102242547B Rake tooth with sharp ridge and curved surface |
| 07/31/2013 | EP2620553A1 Device for digging a trench |
| 07/31/2013 | CN203096806U Excavator breaking hammer control device |
| 07/31/2013 | CN203096804U Automatic control device of quartering hammer of crawler-type hydraulic excavator |
| 07/31/2013 | CN203096795U Internal combustion engine crashing pickaxe impact force adjusting device |
| 07/31/2013 | CN203096794U Cylindrical punch hammer with steel teeth |
| 07/31/2013 | CN203096793U No-noise in-tube ramming hammer |
| 07/31/2013 | CN203096792U Disc soil removing device |
| 07/31/2013 | CN203096791U Width-adjustable depth-adjustable groove-cutting machine for municipal engineering |
| 07/31/2013 | CN203096790U Trunk-type shallow trench digger |
| 07/31/2013 | CN102418359B Three-chain saw slotting machine |
| 07/31/2013 | CA2795681A1 Method and arrangement for producing a trench wall element |
| 07/25/2013 | WO2013109085A1 Shock absorbers for a vibratory ripper |
| 07/25/2013 | US20130185966 Pulsed Supersonic Jet with Local High Speed Valve |
| 07/24/2013 | EP2617901A2 Trenching device |
| 07/24/2013 | CN203080578U Soil loosening apparatus for increasing strength of excavator |
| 07/24/2013 | CN203080577U Conveying vehicle for cleaning and excavating of coal slime |
| 07/24/2013 | CN203080576U Submerged-floating type pneumatic dredge pump |
| 07/24/2013 | CN203080575U Mountain cut-off saw |
| 07/24/2013 | CN203080494U Cascade structure for intercepting sediment in tributaries of Yellow River and developing hydropower station |
| 07/24/2013 | CN103215980A Air-lift slurry discharge subsea pipeline on-line trenching equipment |
| 07/24/2013 | CN103215931A Dredging and pollution discharge method of lake wetland based on river in lake assembled through components |
| 07/17/2013 | CN203066155U Double-hoisting hydraulic system and engineering machinery |
| 07/17/2013 | CN203066148U Automatic regulating system for working height and cutting angle of scarifier |
| 07/17/2013 | CN203066147U Urban water conservancy project desilting device |
| 07/17/2013 | CN203066146U Multi-angle and wide-range base expansion knife rest |
| 07/17/2013 | CN203066145U Flexible pipe guiding device and piling machine |
| 07/17/2013 | CN203066144U Rotating cutting disk used for gully renovating and compacting of farmland trapezoid section irrigation ditch ditching machine |
| 07/17/2013 | CN203066143U Grooving saw machine with four saws |
| 07/17/2013 | CN203066142U Deep-trench and double-arm excavator |
| 07/17/2013 | CN203066134U Synchronous dredging device of dredge boat |
| 07/17/2013 | CN203066069U Pipe winding device hydraulic system and piling machinery |
| 07/17/2013 | CN203061268U Breaking hammer for automatic liquid preparation |
| 07/17/2013 | CN103205991A Channel cleanout device and method thereof |
| 07/17/2013 | CN103205990A Power impact hydraulic grabbing-type earth borrowing device |
| 07/17/2013 | CN102444153B Intelligent inspection well dredging vehicle |
| 07/17/2013 | CN102359137B Land scraper and loosening device thereof |
| 07/17/2013 | CN101535573B Excavator 3d integrated laser and radio positioning guidance system |
| 07/11/2013 | WO2013103706A1 Directional drilling target steering apparatus and method |
| 07/10/2013 | CN203049656U Scraper bucket type trash removing machine |
| 07/10/2013 | CN203049655U Mud / sand suction ship |
| 07/10/2013 | CN203049654U Silt remover |
| 07/10/2013 | CN203049653U Multifunctional traction type trench excavator |
| 07/10/2013 | CN203049652U Chain type trenching machine |
| 07/10/2013 | CN203049651U Wear-resistant suction port inner sleeve |
| 07/10/2013 | CN203049650U Sludge flushing and removing device |
| 07/05/2013 | CA2804867A1 Cable recovery device and system |
| 07/03/2013 | CN203034513U Silt remover for water conservancy project |
| 07/03/2013 | CN203034512U Vertical plastic spreading film placing device |
| 07/03/2013 | CN203034511U Wall brusher of double-helix grooving machine |
| 07/03/2013 | CN203034510U Cable non-trench deeply-burying machine |
| 07/03/2013 | CN203034509U Bottom flatting trenching machine |
| 07/03/2013 | CN203034508U Multi-arm trenching machine |
| 07/03/2013 | CN102409710B Pollutant discharging and dredging device for excavator |
| 07/03/2013 | CN102392465B Multi-body discontinuous coal petrography cutting equipment |
| 07/02/2013 | US8475082 Spring loaded J bar T handle |
| 06/27/2013 | WO2013093492A1 Pump apparatus and unerwater trenching apparatus |
| 06/27/2013 | WO2013090976A1 A disconnectable method and system for seafloor mining |
| 06/27/2013 | US20130161036 Ripper assembly having a linkage assembly and an actuator |
| 06/27/2013 | CA2854455A1 Pump apparatus and unerwater trenching apparatus |
| 06/26/2013 | CN203022811U Track walking-type water sump coal slime cleaning and excavating machine |
| 06/26/2013 | CN203022055U Specially-shaped tooth rake |
| 06/26/2013 | CN203022046U Bulldozer multifunctional soil scarifier |
| 06/26/2013 | CN203022045U Enteromorpha collecting device |
| 06/26/2013 | CN203022044U High abrasion-resistant sand digging bucket |