| Patents for A01B 69 - Steering of agricultural machines or implements; Guiding agricultural machines or implements on a desired track (2,078) |
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| 05/04/1993 | US5207739 Collapsible guide rod assembly for a tractor guidance system |
| 03/03/1993 | EP0529381A1 Axle mounting on the frame of a root crop harvester |
| 02/16/1993 | US5186261 On-land plow assembly with a plurality of adjustable plow units |
| 01/26/1993 | US5181572 Farm implement row guidance device |
| 12/15/1992 | US5170849 Guidance control system for farm tractor/implement combination |
| 10/20/1992 | US5156219 Positioning apparatus for drawn implement |
| 09/29/1992 | USRE34080 Row following guidance device for a tractor-drawn row crop implement |
| 09/22/1992 | US5148873 Row follower |
| 09/22/1992 | US5148591 Vision target based assembly |
| 09/15/1992 | US5146686 Variable centerline sight |
| 06/16/1992 | US5121799 Guiding agricultural vehicles |
| 05/12/1992 | CA1300433C Field marker |
| 05/06/1992 | EP0483905A2 Method and apparatus for controlling high speed vehicles |
| 04/14/1992 | US5103924 Mechanically coupled automatic guidance system for agricultural tractors |
| 04/14/1992 | US5103917 Adjustable calibration assembly for a guidance system |
| 04/02/1992 | WO1992004817A1 Continuous, self-contained mowing system |
| 04/01/1992 | EP0340273B1 Installation for working arable land |
| 03/17/1992 | US5095996 Rotary tiller attachments for facilitating turning |
| 03/10/1992 | US5094300 Attachment for guidance of pull-type implements |
| 03/10/1992 | US5094001 Sighting device |
| 03/05/1992 | DE4102487A1 Servo-controlled agricultural tractor - has sensors to monitor furrows to control position of plough share |
| 02/20/1992 | DE4025737A1 Furrow following guidance of agricultural appliance - correcting for deviations from track followed by towing tractor driver and detected by sensor on carrier |
| 02/18/1992 | US5088561 Sensing apparatus for a guidance system |
| 02/05/1992 | EP0469229A1 Steering device for agricultural machine and machine equipped with such a device |
| 01/02/1992 | EP0463397A1 Seeder |
| 12/12/1991 | WO1991018496A1 Row following drawn implement with internal steering arm |
| 12/04/1991 | CN2089688U Miniature amphibious tillage machine |
| 10/24/1991 | DE4012395A1 Controlling agricultural distribution machines - using image of distribution area formed on recording medium having tracks of defined width |
| 10/01/1991 | CA1289818C Farm chemical sprayer marker |
| 08/20/1991 | US5040613 Guidance system for an agricultural implement |
| 08/20/1991 | CA1287717C Resin molding die |
| 08/14/1991 | DE4004247A1 Servo controlled tractor plough with plant sensing - allows position adjustment for working between rows of plants |
| 07/16/1991 | US5031704 Guidance control apparatus for agricultural implement |
| 07/09/1991 | US5029665 Auto-carrying system |
| 07/02/1991 | US5027525 Field marker |
| 06/25/1991 | US5025866 Row following drawn implement with internal steering arm |
| 05/28/1991 | US5019983 Automatic steering apparatus using reflected signals |
| 05/14/1991 | CA1284053C Row crop tillage and planting unit guidance system |
| 04/30/1991 | US5010960 Method of tilling with improved draft connection |
| 01/29/1991 | CA1279553C Alternating valve |
| 01/22/1991 | US4986367 Folding row marker |
| 01/15/1991 | CA1278945C Combined depth-control and wing-lift hydraulic circuit |
| 10/30/1990 | US4967362 Automatic steering apparatus for crop vehicle |
| 09/11/1990 | CA1273847A1 Floating marker arm mechanism |
| 08/16/1990 | DE3933146A1 Agricultural grubber working in field - comprises tractor-drawn rigid horizontal frame with vertical grub tipped tines and side cutting disc |
| 08/08/1990 | EP0381073A2 Automatic guidance apparatus for a vehicule |
| 06/05/1990 | US4930581 Guidance control apparatus for agricultural implement |
| 05/22/1990 | US4926619 Hay-making machine |
| 05/22/1990 | CA1269273A1 Farm implement hitch |
| 04/24/1990 | US4919214 Centerline sight |
| 04/19/1990 | DE3834977A1 Switching device for the alternate raising and lowering of track markers on mounted agricultural machines |
| 04/05/1990 | DE3833534A1 Regulating method and device for operating a train consisting of a farm tractor and of a plough |
| 03/29/1990 | DE3831764A1 Servo-controlled working appliance with capacitive plant sensing |
| 03/13/1990 | US4907401 Drive assembly for walking mowers |
| 03/06/1990 | US4905769 Draft connection |
| 12/13/1989 | CN2049066U Disk style multipurpose machine for ploughing and working soil |
| 11/28/1989 | US4883128 Guidance system for farm implements |
| 11/28/1989 | US4883127 Sprayer marker |
| 11/28/1989 | US4883126 Ridge planter guide unit |
| 11/08/1989 | EP0340446A2 Transplanter |
| 11/08/1989 | EP0340273A1 Installation for working arable land |
| 10/11/1989 | EP0336767A2 An automatic control system for vehicles |
| 10/04/1989 | EP0211919B1 Marking unsown seed drill rows |
| 10/03/1989 | US4871026 Trench forming device and guidance method |
| 09/21/1989 | WO1989008379A1 Trench forming device and guidance method |
| 09/19/1989 | US4868752 Boundary detecting method and apparatus for automatic working vehicle |
| 08/29/1989 | US4860833 Draft connection |
| 05/30/1989 | US4835691 Positioning system particularly useful for positioning agricultural implements |
| 05/24/1989 | EP0316896A1 Hay-making machine |
| 05/23/1989 | US4831813 System for automatic performance of agricultural tasks such as lawn mowing |
| 05/18/1989 | WO1989004115A1 Installation for working arable land |
| 05/02/1989 | US4826062 Agricultural marking device |
| 05/02/1989 | US4825957 Breakaway mechanism for a row marker |
| 04/25/1989 | US4824358 Resin molding die |
| 04/18/1989 | US4821807 Row crop tillage and planting unit guidance system |
| 01/24/1989 | CA1249162A1 Row following guidance device for a tractor-drawn row crop implement |
| 01/18/1989 | EP0299621A1 Resin moulding die |
| 01/12/1989 | DE3721980A1 Track marker |
| 12/28/1988 | CA1247459A Planter row marker |
| 11/29/1988 | US4788440 Electro-optical systems for control of robots, manipulator arms and coordinate measuring machines |
| 11/09/1988 | EP0244418B1 Hydraulic pressure control device |
| 10/04/1988 | US4774897 Marking unsown seed drill rows |
| 09/14/1988 | EP0282167A2 Alternating valve |
| 09/06/1988 | US4769700 Robot tractors |
| 08/25/1988 | DE3704962A1 Agricultural appliance combination |
| 07/20/1988 | EP0274936A2 Method and apparatus for guiding an agricultural vehicle by means of a sight |
| 06/28/1988 | US4753569 Robot calibration |
| 05/25/1988 | EP0267936A1 Coupling device |
| 05/19/1988 | WO1988003358A1 Beet pick-up loader |
| 05/17/1988 | US4744285 Alternating valve |
| 05/11/1988 | DE3638134A1 Ruebenvollerntemaschine Ruebenvollerntemaschine |
| 05/04/1988 | EP0266295A1 System for the automatic realization of agricultural labour such as lawn mowing |
| 03/29/1988 | US4734683 Electronic row width monitor |
| 02/23/1988 | US4726175 Harvester guidance control system |
| 02/23/1988 | CA1233220A1 Row crop harvester guidance system control circuit |
| 12/22/1987 | US4715012 Electronic tractor control |
| 12/03/1987 | WO1987007112A1 Coupling device |
| 11/17/1987 | US4706773 Vehicle guidance system particularly for use in agriculture |
| 11/12/1987 | DE3615535A1 Potato-harvesting machine |
| 10/20/1987 | US4700784 Combined depth-control and wing-lift hydraulic circuit |