| Patents for E02F 3 - Dredgers; Soil-shifting machines (20,930) |
|---|
| 07/18/1989 | CA1257615A1 Trench-digging machine |
| 07/13/1989 | WO1989006171A1 Heavy duty plate shear |
| 07/13/1989 | DE3802083A1 Hydraulic excavator |
| 07/12/1989 | EP0231252B1 Device for displacing material |
| 07/11/1989 | US4846624 Attachment device for front end loaders |
| 07/11/1989 | US4845948 Hydraulic circuit with a booster circuit for operating the working members of earth-moving machines |
| 07/11/1989 | US4845867 Triple-purpose attachment |
| 07/11/1989 | CA1257231A1 Curved tubular bucket support frame |
| 07/11/1989 | CA1257230A1 Earth moving machine |
| 07/05/1989 | EP0323024A1 Depth sensor for excavator |
| 07/05/1989 | EP0322935A1 Process and device for depositing loose material under water, in particular covering a pipe or the like |
| 07/05/1989 | CN2040509U Caterpillar tractor scraper lifter |
| 07/05/1989 | CN2040508U Bucket brigrde railway type excavator |
| 07/04/1989 | US4844685 Electronic bucket positioning and control system |
| 07/04/1989 | US4844549 Milling machine for digging trenches in the earth |
| 07/04/1989 | US4843743 Portable motorized shovel |
| 07/04/1989 | US4843742 Trenching apparatus and methods of forming inground retaining walls |
| 06/29/1989 | WO1989005888A1 Plow for motor grader |
| 06/29/1989 | DE3741872A1 Dipper dredger with a boom mounted pivotably on the platform |
| 06/28/1989 | EP0321902A1 Tool-connecting device for an excavator |
| 06/27/1989 | US4842336 Method and device for collecting objects from the seabed |
| 06/22/1989 | DE3742198A1 Pulshydraulik-antriebssystem Pulse hydraulic drive system |
| 06/20/1989 | CA1256129A1 Railroad mounted trench digger |
| 06/20/1989 | CA1256070A1 Earth moving machine |
| 06/15/1989 | WO1989005408A1 Pulsating hydraulic drive system |
| 06/15/1989 | DE3740753A1 Tragarmanordnung an teilschnittmaschinen Support arm assembly of partially cut machine |
| 06/13/1989 | US4838734 Method and device for forming a fluid permeation control layer of the ground |
| 06/13/1989 | US4838493 Concrete crusher |
| 06/13/1989 | US4837951 Reversible moldboard assembly |
| 06/13/1989 | US4837950 End loading motor scraper |
| 06/13/1989 | US4837940 Grader blade height control |
| 06/07/1989 | EP0319115A1 Improved tortional limiting device for a vehicular ditching apparatus |
| 06/07/1989 | EP0318805A1 Fluid-power bearing actuator |
| 06/07/1989 | EP0318622A1 Swivel grab bucket |
| 06/07/1989 | CN1033301A Road-roller |
| 06/06/1989 | US4836741 Backhoe hitch apparatus |
| 06/06/1989 | US4836740 Pivotal attachment structure |
| 06/06/1989 | US4836294 Machine for digging a putting cup hole |
| 06/06/1989 | CA1255111A1 Trenching method and apparatus |
| 06/01/1989 | WO1989004894A1 Working machine for construction vehicles and method of operating same |
| 06/01/1989 | WO1989004893A1 Self-propelled multi-task machine |
| 06/01/1989 | DE3736464A1 Bucket for bucket wheel excavator |
| 05/31/1989 | EP0318271A1 Rotatable backhoe and use thereof for removing material from underneath a structure |
| 05/31/1989 | EP0317824A2 Machine and method for continuously cutting and conveying rock |
| 05/30/1989 | US4834197 Trench cutter |
| 05/30/1989 | US4834191 Plow for motor grader |
| 05/30/1989 | US4833798 Hydraulic control for earth working machines |
| 05/30/1989 | US4833797 Trencher attachment |
| 05/24/1989 | EP0317538A1 Hose clamp |
| 05/24/1989 | DE3838588A1 Bucket with breaking pick, in particular for bucket wheel excavators |
| 05/24/1989 | DE3737893A1 Bucket for a bucket wheel |
| 05/23/1989 | US4832390 Clamshell loader bucket with broom brushes |
| 05/23/1989 | CA1254383A1 Bulldozer blade mounting and stabilizing arrangement |
| 05/18/1989 | DE3737864A1 Cutting head of a road-driving or winning machine |
| 05/17/1989 | CN2037749U Earth clearer for shovel bucket |
| 05/11/1989 | DE3734273A1 Working vehicle, in particular front loader |
| 05/10/1989 | EP0315547A1 Bucket excavator |
| 05/10/1989 | CN1032830A Corner guard system having a replaceable corner tooth |
| 05/09/1989 | US4829418 Apparatus and method for controlling a hydraulic excavator |
| 05/09/1989 | US4828690 Hand tool for sifting debris from sand and soil |
| 05/09/1989 | US4828125 Device for maintaining a tool attachment in a knuckle boom crane on a constant level above the ground |
| 05/09/1989 | US4828045 Dozer blade visual tilt indicator |
| 05/09/1989 | US4828044 Dozer blade mounting assembly |
| 05/09/1989 | US4827636 Trencher crumber assembly |
| 05/05/1989 | WO1989003916A1 Corner guard system having a replaceable corner tooth |
| 05/05/1989 | WO1989003915A1 Rotary trench excavator |
| 05/03/1989 | EP0170654B1 High strength bucket |
| 05/03/1989 | DE3735679A1 Arrangement for raising the groundwater level, method of producing the arrangement, and apparatus for carrying out this method |
| 05/02/1989 | US4826391 Manipulator arm position sensing |
| 05/02/1989 | US4826389 Tractor frame for tractor-mounted implement |
| 05/02/1989 | US4826251 Dredging apparatus |
| 05/02/1989 | US4825568 Apparatus for controlling posture of work implement of loader |
| 05/02/1989 | US4825567 Safety device intended for equipping a self-propelled appliance having stabilizers, especially a public works appliance of the shovel-loader type |
| 04/26/1989 | EP0312724A1 Method for excavating hole and apparatus therefor |
| 04/26/1989 | CN1032562A Levelling machine |
| 04/25/1989 | US4824319 Loader coupler |
| 04/25/1989 | US4824176 Milling engine for excavating trenches in the ground |
| 04/20/1989 | DE3834787A1 Bucket with breaker bit, in particular for a bucket wheel excavator |
| 04/19/1989 | EP0312489A1 Device for coupling an implement to a vehicle, in particular a construction machine or agricultural one |
| 04/18/1989 | US4822106 Golf ball dredge |
| 04/18/1989 | US4821810 Agricultural and construction utility blade |
| 04/18/1989 | US4821808 Resonantly driven earth moving blade |
| 04/12/1989 | EP0311082A1 Full-turn type working machine |
| 04/12/1989 | EP0310674A1 Operation speed controller of construction machine |
| 04/12/1989 | EP0310610A1 Auto body crushing device |
| 04/11/1989 | US4820112 Claw attachment for backhoes and excavators |
| 04/11/1989 | US4820041 Position sensing system for surveying and grading |
| 04/11/1989 | US4819948 Submerged shaft seal |
| 04/11/1989 | US4819349 Offal scraper |
| 04/11/1989 | US4819348 Ditch forming machine |
| 04/11/1989 | US4819347 System for removing submerged sandwaves |
| 04/11/1989 | US4819346 Dredge cutting head with shock absorber |
| 04/06/1989 | WO1989002957A1 Pivotable tool attachment for mounting on excavators |
| 04/06/1989 | WO1989002956A1 A grader for use with a tractor |
| 04/06/1989 | WO1989002955A1 Land levelling machine |
| 04/06/1989 | DE3832266A1 Kupplungseinrichtung Coupling device |
| 04/05/1989 | EP0310592A1 Loading device |
| 04/05/1989 | EP0309987A1 Fluid pressure control system |
| 04/05/1989 | CN1032203A Dipper teeth of digging machine |
| 04/04/1989 | US4818107 System for measuring the position of a moving body |