| Patents for A01B 63 - Lifting or adjusting devices or arrangements for agricultural machines or implements (3,360) |
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| 11/23/1989 | DE3816149A1 Apparatus for preventing unintentional movement of hydraulic lifting gear in the lifting direction |
| 11/21/1989 | CA1263069A1 Selective control device for plural kinds of oil- hydraulic actuators |
| 11/15/1989 | EP0342065A1 Implement for treating ploughed land |
| 11/15/1989 | EP0341459A2 Agricultural tractor having soil-working implements attached thereto |
| 11/08/1989 | EP0340811A2 Implement control system |
| 11/08/1989 | EP0340446A2 Transplanter |
| 11/07/1989 | US4878543 Method for controlling an attachment to agricultural tractors |
| 10/19/1989 | DE3906099A1 Lifting rod for connecting the lifting arms to the lower bars in a hydraulic lifting mechanism on a tractor |
| 10/04/1989 | CN2045178U Multifunctional seeder |
| 10/04/1989 | CN2045177U Turning mechanism for plough |
| 10/03/1989 | US4871030 Farm implement having transport wheels and soil working rollers on rotating frame |
| 09/12/1989 | US4865132 Tillage implement having independent depth control mechanism |
| 08/30/1989 | CN2043772U Motor manostat for small-sized tractor |
| 08/24/1989 | DE3804467C1 Actuating apparatus for additional remote actuation of the position control of a hydraulic lift |
| 08/22/1989 | US4858698 Weight transfer linkage arrangement |
| 08/09/1989 | EP0326728A2 Diorganopolysiloxane-azobenzene alternating copolymers and methods for their preparation |
| 08/01/1989 | US4852657 Apparatus for selectively positioning movable work element with preselected maximum velocity control |
| 07/26/1989 | EP0324974A1 Device for the frontal mounting of equipment on a small tractor, especially a garden or lawn tractor |
| 07/18/1989 | US4848483 Tool attachment means for tractors |
| 07/18/1989 | US4848481 Tractor with hydraulic control system for preventing skidding |
| 07/13/1989 | DE3743552A1 Hydraulic lifting device on a tractor |
| 07/11/1989 | US4846283 Engine-sensing draft control system with multiple feedback compensation mechanisms |
| 06/20/1989 | US4840233 Agricultural implement having rock shaft actuated transport wheel frames |
| 06/06/1989 | US4837691 Hitch control system with start-up lock-out |
| 06/06/1989 | CA1255144A1 Variable length link for a three-point hitch |
| 05/16/1989 | CA1254286A1 Plowing depth detecting system for rotary plow |
| 05/09/1989 | US4828043 Device for adjusting the distance between soil-working tools |
| 05/03/1989 | EP0314640A1 A stress sensor for the electronic control of hydraulic power-lifts fitted to agricultural tractors |
| 05/03/1989 | CN2036738U Amplitude modulation device of tillage machinery |
| 05/02/1989 | US4826954 Photorecordable information carrying media |
| 05/02/1989 | US4825956 Tractor and implement with implement inclination control |
| 05/02/1989 | US4825655 Master/slave hydraulic system with rebound compensation |
| 05/02/1989 | US4825570 Lift system for front-mounted implements for lawn and garden tractors |
| 04/18/1989 | US4822962 Vehicle control system |
| 04/18/1989 | US4821806 Implement having parallel cylinder depth control and series cylinder lift |
| 04/12/1989 | EP0311221A1 Soil cultivating implements |
| 04/04/1989 | US4817730 Hydraulic weight transfer system for an implement with a lift assist wheel |
| 04/04/1989 | US4817726 Actuating arrangement for a power lift |
| 04/04/1989 | US4817499 Tractor hitch control system |
| 03/14/1989 | CA1251086A1 Telescopic adjusting crank for tractor 3-point hitch |
| 03/07/1989 | US4809786 In a towed tillage implement |
| 03/07/1989 | US4809785 Agricultural working vehicle with electro-hydraulic for regulating lifting mechanism arrangements |
| 02/21/1989 | US4807136 Draft load measurement and control |
| 02/08/1989 | CN2031989U Mechanical mounted double-bladed plough |
| 01/24/1989 | CA1249161A1 Mechanism for raising and lowering of a farming implement |
| 01/10/1989 | US4796712 Draft load control systems |
| 01/04/1989 | EP0297210A2 Measuring part for measuring the draft force applied to a tractor |
| 01/03/1989 | CA1248057A1 Power lift for a lifting device |
| 12/28/1988 | EP0297012A2 Rotary mower |
| 12/28/1988 | CN87217114U Level adjuster for hillside fields worker |
| 12/13/1988 | CA1246719A1 Hydrostatic hitch control |
| 12/13/1988 | CA1246497A1 Method for feeding hydraulic fluid, both continuously and by means of controlled impulses, to activate a hydraulic lift working normally in a continuous mode, and apparatus forthe implementation of said method |
| 12/08/1988 | DE3815409A1 Lifting mechanism for farm tractors |
| 12/07/1988 | EP0293478A1 Vertical movement control apparatus for agricultural machines |
| 11/30/1988 | EP0292859A1 Method and device for position control in a hitching system |
| 11/29/1988 | US4787293 Hydraulic system for working vehicles |
| 10/19/1988 | EP0287487A2 Soil cultivating machine having a rotary shaft transverse to the direction of travel |
| 10/06/1988 | DE3709938A1 Control arrangement for two hydraulic consumers |
| 10/04/1988 | US4775940 Plowing depth detecting system for rotary plow |
| 09/21/1988 | CN87205510U Deep limitation wheel position changer of tumbling bidirectional plough |
| 09/06/1988 | US4768449 Cultivator with supporting apparatus movable to stored position |
| 09/01/1988 | DE3708143C1 Safety circuit for the control circuit of a power lift |
| 08/31/1988 | EP0280376A2 Hitch control system |
| 08/17/1988 | EP0278657A1 Agricultural implement for supporting ground working tools at variable heights relative to ground level |
| 08/16/1988 | CA1240546A1 Load sensor for a draft vehicle with a draft control system |
| 08/09/1988 | US4762183 Farming implement with adjustable earthworking tool framer |
| 08/09/1988 | US4762181 Minimum tillage implement |
| 07/28/1988 | DE3700835A1 Dynamometer for measuring mechanical stresses in an approximately bolt-like component |
| 07/27/1988 | EP0275342A1 Device for measuring the penetration depth or the vertical position of an agricultural tool with respect to ground level |
| 07/06/1988 | CN87106222A Adjusting apparatus of electric hydraulic pressure lifting mechanism |
| 06/16/1988 | DE3642682A1 Agricultural soil-working appliance |
| 06/15/1988 | EP0271119A1 A soil cultivating machine |
| 06/14/1988 | US4750440 To be drawn behind an agricultural implement |
| 06/01/1988 | EP0268699A1 Reversible plough with a device for the continuous adjustment of the angle of inclination |
| 05/31/1988 | US4747257 Weight transfer control for a front mount mower |
| 05/17/1988 | US4744582 Implement hitch linkage for front mount mowers |
| 05/11/1988 | EP0266345A1 Arrangement for a roller |
| 05/05/1988 | WO1988002982A1 Vertical movement control apparatus for agricultural machines |
| 04/28/1988 | DE3734842A1 Arrangement for regulating the working depth of tractor-mounted appliances, especially ploughs, as a function of the pulling force |
| 04/28/1988 | DE3636063A1 Seed drill |
| 04/21/1988 | DE3634175A1 Farm roller |
| 04/19/1988 | US4738317 Implement with tool frame selectively lockable in vertical position |
| 04/12/1988 | US4736673 Selective control device for plural kinds of oil-hydraulic actuators |
| 04/07/1988 | DE3632015A1 Arrangement for controlling a servomotor, in particular for tractor lifting mechanisms |
| 03/17/1988 | DE3717719A1 Electrohydraulic lifting-unit regulating device |
| 03/16/1988 | EP0259801A1 Hitching device for an agricultural tractor |
| 03/02/1988 | CN87201824U Automatic lifter of riding plow for walking tractor |
| 03/01/1988 | CA1233371A1 Depth sensing structure for an agricultural implement |
| 02/17/1988 | EP0157790B1 Magnetic transducer means for measuring force, in particular the traction resistance of an agricultural tractor |
| 02/09/1988 | US4723608 In an agricultural implement |
| 02/03/1988 | EP0254984A1 Method and apparatus for controlling the working depth of furrow openers for seed drills |
| 01/26/1988 | US4721001 Arrangement for mechanical measurement and regulation of pulling force of tractor |
| 01/21/1988 | DE3720334A1 Multi-furrow plough |
| 01/21/1988 | DE3720333A1 Plough body with a pivotable system |
| 01/19/1988 | CA1231622A1 Depth control valve and system for agricultural implements |
| 01/19/1988 | CA1231578A1 Forwardly-folding agricultural implement |
| 01/19/1988 | CA1231577A1 Drift eliminator for series hydraulic lift system on tillage implements and the like |
| 01/14/1988 | WO1988000003A1 Three point hitch velocity control |
| 01/07/1988 | EP0251529A1 Tractor hitch control system |
| 01/07/1988 | DE3720881A1 Lifting unit for agricultural commercial vehicles |