Patents
Sitemap › A01 - Agriculture; Forestry; Animal husbandry; Hunting; Trapping; Fishing › A01B - Soil working in agriculture or forestry; Parts, details, or accessories of agricultural machines or implements, in general › A01B 3 - Ploughs with fixed plough-shares
Patents for A01B 3 - Ploughs with fixed plough-shares (1,367)
12/1989
12/20/1989EP0346846A1 Eye movement inspection device
11/1989
11/22/1989CN1037252A Magnetized plough
10/1989
10/18/1989CN2045922U Single girder hanging apparatus of driving farm tools
08/1989
08/16/1989CN2042654U Reverse mechanism for alternate plow.
08/16/1989CN2042653U Vertical reverse plough mating with walking tractor.
07/1989
07/19/1989CN2041090U Plough for harvesting peanuts
07/05/1989CN2040289U Plough mounted on tractor
06/1989
06/21/1989CN2039494U Mini four-wheel four-furrow suspended plough
06/14/1989CN2039097U Cultivator being able to lift vertically
06/08/1989DE3740081A1 Subsoil loosener for loosening compacted soils
05/1989
05/31/1989EP0318391A1 Extremely long semi-mounted two-way ploughs
05/31/1989EP0317570A1 Plough with symmetrical bodies.
05/31/1989CN2038308U Maneuver plough capable of ploughing at left and right positions
05/24/1989EP0316823A2 Two-way turn-over plough
05/09/1989US4828043 Device for adjusting the distance between soil-working tools
05/02/1989US4825955 Plough reversing method
04/1989
04/12/1989CN2035552U Steel frame plough with adjustable depth of turning soil
03/1989
03/15/1989EP0306548A1 Apparatus for reversing and adjusting the cutting width of a reversible plough
02/1989
02/22/1989CN2032786U Tractor-ploughing plough (harrow, roller) balance device
02/08/1989CN2031990U Tractor loosener
02/08/1989CN2031989U Mechanical mounted double-bladed plough
02/01/1989CN2031595U Multipurpose suspended plough for shallow-ploughing, deep-loosening and soil-turning
01/1989
01/31/1989US4800963 Bidirectional moldboard plow with moldboard frame including guide member
01/04/1989EP0297969A1 Multiple bottom semi-mounted two way ploughs
11/1988
11/09/1988CN87214168U Tractor drawn double-bladed plough
10/1988
10/18/1988US4778013 Plow with adjustable moldboard
09/1988
09/28/1988CN87206363U 悬挂式三铧犁 Hanging three plow
09/22/1988DE3707857A1 Mounted turnover plough
09/22/1988DE3707856A1 Mounted turnover plough
08/1988
08/02/1988CA1239827A1 Reversing and adjustment mechanism
07/1988
07/27/1988CN87208952U Plough with rotary arm suitable for mountainous aera
07/27/1988CN87205521U Hanging and tracting type vibration moulding machine
07/13/1988CN87204674U A kind of walking plough
06/1988
06/01/1988EP0268699A1 Reversible plough with a device for the continuous adjustment of the angle of inclination
05/1988
05/11/1988EP0266440A1 Reversible plough
04/1988
04/21/1988DE3631110A1 Hydraulic cylinder for agricultural ground-working appliances
03/1988
03/10/1988DE3629257A1 Hydraulic cylinder for agricultural ground-working appliances
03/09/1988CN86209141U Electric-control hydraulic turnover mechanism for hanging two-way plough
02/1988
02/25/1988WO1988001129A1 Plough with symmetrical bodies
02/02/1988US4722262 Fluid pressure system and value therefor
01/1988
01/20/1988EP0147442B1 Plough
01/13/1988EP0252591A1 An arrangement in a combined depth and transport wheel for a turning plough
12/1987
12/15/1987CA1230254A1 Plough reversing mechanism
11/1987
11/05/1987DE3614737A1 Agricultural appliance, especially a turn-over plough, with a change-over cylinder
11/05/1987DE3614622A1 Agricultural appliance, especially turn-over plough
10/1987
10/07/1987CN87101941A Device for adjusting the distance between soil working tools
09/1987
09/23/1987EP0238465A1 A device for adjusting the distance between soil working tools
09/16/1987EP0237422A1 Hydraulic system for a semi-mounted reversible plough with a pivoting support wheel
09/08/1987US4691785 Reversible plow and carriage
08/1987
08/04/1987USRE32467 Plow attachment for converting a rotary tiller into a plow
07/1987
07/30/1987DE3611710C1 Reversing device
07/07/1987CA1223768A1 Plough
06/1987
06/30/1987CA1223501A1 Fluid pressure system and valve therefor
05/1987
05/20/1987EP0222377A1 Multi-furrow plough
04/1987
04/22/1987CN86202415U Rapid decompression plough
04/08/1987EP0216997A2 Reversible plough
03/1987
03/03/1987US4646849 Reversible plough having a reversing and adjustment mechanism
12/1986
12/30/1986EP0205987A2 Turning device for two-way turn-over ploughs
10/1986
10/29/1986EP0199406A1 A plough
10/29/1986EP0198952A2 Front-mounted multi-furrow plough
10/22/1986EP0198405A2 Mounted plough
09/1986
09/10/1986CN85203811U Walking double-disk coulter polough
08/1986
08/05/1986US4603745 Plough reversing mechanism
07/1986
07/23/1986CN85203720U Universal fine plough working at usual speed and high speed
06/1986
06/18/1986EP0184890A2 Plough
06/03/1986US4592429 Roll-over variable width plow
05/1986
05/28/1986EP0181947A1 Oscillatine depth wheel for a reversible plough
05/14/1986EP0181039A2 A plough
03/1986
03/05/1986EP0173400A1 A plough
02/1986
02/19/1986EP0171861A1 A plough
01/1986
01/29/1986EP0169619A2 A plough
01/08/1986EP0167212A2 A plough
01/02/1986EP0166150A2 Pivotable gauge wheel
12/1985
12/10/1985CA1197720A1 Plow
09/1985
09/17/1985US4541491 Plow
09/04/1985EP0153317A1 Fluid pressure system and valve therefor
07/1985
07/10/1985EP0147442A1 Plough.
06/1985
06/19/1985EP0145027A2 Tractor-drawn plough
05/1985
05/02/1985EP0139305A2 Reversible plough with supporting device
04/1985
04/23/1985US4512415 Pull plow with pull handles and runners and automobile selectively attached to plow
04/02/1985CA1184806A1 Hitch leveling linkage
03/1985
03/05/1985US4502544 Plow assembly with turn limiter
01/1985
01/30/1985EP0132397A2 Soil working implement
01/02/1985EP0130127A1 Multi-furrow reversibly mounted plough
12/1984
12/27/1984EP0128931A1 Device at a plough
12/06/1984WO1984004786A1 Fluid pressure system and valve therefor
12/06/1984WO1984004650A1 Plough
10/1984
10/02/1984US4474247 Automatic bi-positionable mechanism for plows
09/1984
09/26/1984EP0119407A1 Mounted plough
07/1984
07/25/1984EP0114156A2 A reversible plough
06/1984
06/21/1984WO1984002250A1 Device at a plough
06/13/1984EP0110788A1 Connection device between a plough frame and the coupling device of a tractor
03/1984
03/27/1984CA1164263A1 Tractive force sensing system for tractor
03/06/1984US4434856 Garden plow with support means operative to inversely angularly displace earthworking tool
12/1983
12/06/1983US4418758 Tractive force sensing system for tractor
12/06/1983CA1158092A1 Plough
11/1983
11/23/1983EP0094551A1 Two-way turn-over plough
11/15/1983US4415040 Fully mounted variable width plow
11/02/1983EP0092641A1 Front-mounted multi-furrow plough
10/1983
10/18/1983US4410047 Tractor-drawn plow with hitch and furrow wheel hydraulic motors connected in series
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