| Patents for A01B 3 - Ploughs with fixed plough-shares (1,367) |
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| 06/09/1993 | EP0545215A1 Plough |
| 06/02/1993 | EP0544555A1 Multiple share semi-mounted reversible plough |
| 05/27/1993 | WO1993009657A1 Reversible plough |
| 05/27/1993 | DE4139229A1 Schwenkpflug Swivel plow |
| 05/26/1993 | CN2134034Y General seating plough mounted with 2-share |
| 05/19/1993 | DE4137834A1 Plough with ploughshares mounted on swinging frame - has point of attachment of frame which can be positionally adjusted |
| 05/19/1993 | DE4137833A1 Plough with shares on swinging frame - has frame rotating about axis inclined to the vertical |
| 04/20/1993 | CA1316357C Linkage apparatus having a mechanism for dampening vibrations |
| 04/06/1993 | US5199503 Plow |
| 03/09/1993 | US5191941 Suspension device for a plow |
| 03/03/1993 | EP0528933A1 Plough frame comprising at least one body having a plough board and a single ploughshare acting in both ploughing directions. |
| 02/17/1993 | CN2126953Y Two-way plough |
| 02/16/1993 | US5186261 On-land plow assembly with a plurality of adjustable plow units |
| 01/21/1993 | DE4216385A1 Plough attachment for tractor - has control cylinders between frame and mounting frame and control rod, and controller coordinating deflections of ploughing frame and body using microprocessor-controlled valve |
| 01/07/1993 | DE4216386A1 Rotary plough for coupling to tractor - has vertical pivot coupling about which it swings horizontally powered by extension beam |
| 12/30/1992 | CN2125904U Alternating foldable plough with one plough-share |
| 12/30/1992 | CN2125903U Plough driven by small four-wheel track |
| 12/23/1992 | EP0519839A1 Improvement to agricultural machines such as semi-mounted ploughs having an auxiliairy drive unit |
| 10/21/1992 | CN2119080U Machine for tilling and preparing soil in paddy field or dry land |
| 10/07/1992 | CN2117700U Pneumatic turn-wrest plough |
| 10/07/1992 | CN2117699U Multifunctional plough, harrow implement |
| 09/09/1992 | EP0502346A1 Plough body with double-sided moldboard |
| 09/02/1992 | CN2114269U Suspending self-adjusting cultivating plough |
| 09/02/1992 | CN2114268U Small four-wheel multi-purpose plaugh |
| 08/26/1992 | CN2113588U Automatic reversing two-way plough |
| 08/12/1992 | EP0498775A1 Ambiversatile multi-furrow plough with variable angle displacement incorporating tilling blade elements |
| 08/12/1992 | EP0498176A1 Ground working implement in the form of a reversible plough with overload safety |
| 08/12/1992 | CN2112247U Automatic turn-wrest plough |
| 08/05/1992 | CN2111618U Minisize agricultural cultivator |
| 07/07/1992 | US5127480 Reversible plow |
| 07/01/1992 | CN2108406U Animal-drawn plough |
| 05/21/1992 | DE4103288A1 Pendulum swinging support wheel for rotatable plough - swing about horizontal transverse axle to support plough frame and lock it in position for transportation |
| 04/29/1992 | EP0317570B1 Plough with symmetrical bodies |
| 04/29/1992 | CN2102600U Electromagnetic plough |
| 04/22/1992 | EP0481883A1 Improvement of the articulation of a large width plough |
| 03/25/1992 | EP0477041A1 Electronic device for controlling the working depth and the raising of a semimounted reversible plough |
| 03/11/1992 | CN2098143U Drawbar-type reversible mechanism with four connecting-rods used for mechanical reversible plough |
| 02/19/1992 | CN2096200U Irrigated-drid field plough of walking tractor |
| 02/05/1992 | EP0469871A1 Reversible moldboard plow |
| 01/15/1992 | EP0465876A2 Plough, particularly double-turn plough like reversible disk plough and the like |
| 01/07/1992 | US5078217 Reversible plow |
| 12/31/1991 | US5076368 Reversible plow |
| 12/25/1991 | CN2091258U Multi-functional one-wheel walking tractor |
| 12/18/1991 | CN2090604U Manpower ploughing machine |
| 11/13/1991 | CN2088321U Tillage machine for mountainous region |
| 11/13/1991 | CN2088320U Suspended alternate plow of walking tractor |
| 10/30/1991 | CN2087420U Suspended single-furrow deep-plow |
| 10/30/1991 | CN2087419U Splitter for double-crop field |
| 10/24/1991 | WO1991015942A1 Plough frame comprising at least one body having a plough board and a single ploughshare acting in both ploughing directions |
| 10/24/1991 | CA2081215A1 Plow frame comprising at least one body having a ploughboard and a single ploughshare acting in both ploughing directions |
| 09/11/1991 | CN2084275U Motive double-adjustment cultivation plough |
| 09/11/1991 | CN2084273U Two-direction cultivation plough |
| 09/04/1991 | CN2083832U Multifunctional farm implement |
| 08/27/1991 | CA1287995C Arrangement in a combined depth and transport wheel for a turning plow |
| 08/14/1991 | DE4003614A1 Reversibly mounted plough - with plough blades arranged on slides on frame of implement |
| 08/07/1991 | CN2082069U Hydraulic and bidirectional alternating plough |
| 08/01/1991 | DE4031504A1 Semi-trailer rotating plough with variable setting of working width |
| 08/01/1991 | DE4031503A1 Semi-trailer rotating plough |
| 07/24/1991 | CN2081186U Width-adjusting tillage machine for paddy field and dry land |
| 07/16/1991 | WO1991010349A1 Deflector |
| 07/16/1991 | CA2073878A1 Deflecteur |
| 06/18/1991 | US5024281 Reversible moldboard plow |
| 06/12/1991 | CN2078516U Wrigging-type plough |
| 06/04/1991 | US5020603 Reversible plow |
| 05/29/1991 | CN2077629U Man-driven plough |
| 05/29/1991 | CN1051658A Tillage machine for mountain area |
| 05/22/1991 | EP0428495A2 Plough with additional implement |
| 05/22/1991 | CN2077182U Double-shared plough |
| 05/15/1991 | CN2076738U Mounted swivel plough with harrow |
| 05/08/1991 | DE4032437A1 Reversible plough for arable field - incorporates mechanism for reliable tilting of beam using double shears lever linkage |
| 05/08/1991 | CN2076293U Animal multipurpose plough |
| 04/17/1991 | CN2074965U Mounted reversible alternating plough |
| 04/10/1991 | EP0420971A1 Plough with symmetrical body, with adjustable variable angle of attack and variable working width |
| 03/19/1991 | US5000267 Towed by a tractor |
| 03/13/1991 | EP0416206A2 Prioritysequencing for hydraulically operated turnwrest plough |
| 03/13/1991 | CN2072757U Man-driven plough |
| 03/07/1991 | DE4014547A1 One-way plough with supporting wheel - wheel forming angle opening against plough direction in work position of plough frame to ploughing direction |
| 03/06/1991 | EP0415907A1 Tractor mountable plough, perpendicularly adjustable to the direction of travel and parallel to the ground |
| 02/19/1991 | US4993825 Device for photographing eye movement |
| 02/06/1991 | CN2070525U Animal-drawn plough |
| 01/30/1991 | CN1048782A Plow |
| 01/29/1991 | US4988183 Eye movement inspection device |
| 01/15/1991 | US4984638 Plow with symmetrical bodies having concave vertical and horizontal cross-sections |
| 12/19/1990 | CN1010826B Magnetized plough |
| 11/22/1990 | EP0397873A1 Plough |
| 11/01/1990 | WO1990012490A1 Plough with symmetrical body, with adjustable variable angle of attack and variable working width |
| 10/24/1990 | CN2064149U Man power plough |
| 10/03/1990 | EP0389591A1 Plough with symmetrical body |
| 09/27/1990 | DE3909984A1 Implement-carrier system for single-handed work in wine-growing on steep slopes |
| 09/27/1990 | DE3908985A1 Hydraulic circuit for a mounted half-turn plough |
| 08/29/1990 | EP0384066A1 Turnover mechanism for agricultural implements |
| 07/24/1990 | US4942928 Bidirectional moldboard plow with adjustable tilting mechanism |
| 07/05/1990 | DE3900086A1 Adjusting device with a sensor for an implement, in particular a two-way turn-over plough |
| 07/03/1990 | CA1271079A1 Device for adjusting the distance between soil working tools |
| 05/31/1990 | WO1990005446A1 Plough |
| 05/23/1990 | EP0369318A2 Alternating plow |
| 03/08/1990 | WO1990001863A1 Plough with symmetrical body |
| 01/30/1990 | US4896731 Reversible semi-mounted plow with a lockable articulation |
| 01/17/1990 | CN1006441B Device for adjusting the distance between soil working tools |
| 01/03/1990 | EP0348544A1 Plough comprising rollers |