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 19 - Harrows with non-rotating tools
Patents for A01B 19 - Harrows with non-rotating tools (320)
06/1995
06/06/1995CA2063462C Harrow carts
05/1995
05/31/1995EP0655184A1 Agricultural machine with covering device
04/1995
04/18/1995US5407014 Gravel scarifying device
02/1995
02/12/1995CA2128844A1 Harrow
01/1995
01/11/1995CN2187048Y Internal fixation multi-functional guide for fracture of neck of femur
10/1994
10/25/1994US5358056 Spring tooth harrow
09/1994
09/22/1994DE4408283A1 Device for removing wild weed growth on facilities, such as paths, squares and parks
09/21/1994EP0615680A1 Device for weeding in places like streets, squares and parks
09/07/1994EP0613340A1 Harrow, in particular foldable harrow.
10/1993
10/10/1993CA2065701A1 Gravel scarifying and levelling device
09/1993
09/28/1993US5248000 Harrowing device
05/1993
05/27/1993WO1993009658A1 Harrow, in particular foldable harrow
04/1993
04/29/1993DE4135414A1 Machine for hoeing around plants in rows to remove weeds - consists of oscillating tool aggregate in frame towed by tractor or self propelled
04/28/1993CN2130319Y All-straight beam toothed harrow
03/1993
03/18/1993DE4134744A1 Spike harrow - consists of tools which can be replaced and rotated within the holders and has ability to adjust set angles
03/16/1993CA1314426C Prickle chain means and method of production thereof
02/1993
02/04/1993WO1993001704A1 Flexible rotary harrow
01/1993
01/21/1993WO1993000790A1 Flexible rotating chain-harrow
09/1992
09/09/1992CN2114946U T-shaped harrow
09/01/1992US5143160 Chain harrow carts
08/1992
08/19/1992CN2112922U Multifunctional movable harrow for paddy field or dry land
08/05/1992CN2111620U Multifunctional dual-purpose harrow in use for water or dry land
05/1992
05/20/1992CN2104529U Harrow with tool-frame mechanically moved to-and-fro
04/1992
04/29/1992EP0273931B1 Device for tilling the soil
04/29/1992CN2102596U Digging machine
02/1992
02/12/1992EP0470641A1 Harrowing device
12/1991
12/19/1991DE4018728A1 Reciprocating harrow for cultivating field - has elements protecting beams against wear
12/04/1991CN2089687U Multirpupose toothed harrow
09/1991
09/03/1991US5044449 Flex tine soil mulcher
07/1991
07/25/1991WO1991010350A1 Agricultural weeding apparatus
07/17/1991CN2080742U Amphibious shallow ploughing clod-crusher
07/02/1991US5027907 Integral wire element
04/1991
04/11/1991DE3932512A1 Vibrating harrow with easily fitted tines - has U-shaped longitudinal supports fitted with arms vertical
03/1991
03/20/1991CN2073204U Harrow used in paddy field
02/1991
02/19/1991CA1280313C Harrow
11/1990
11/22/1990EP0398152A2 Motor-driven vibratory harrow
10/1990
10/10/1990EP0391821A1 Soil working machine with improved frame
03/1990
03/22/1990WO1989008976A3 Apparatus for cultivating rice and other crops
03/21/1990CN2054613U Dual purpose rake for paddy field and dry farmland
01/1990
01/30/1990US4896730 Apparatus for cultivating rice and other crops
01/02/1990US4890678 Soil-working farm machine
11/1989
11/29/1989EP0343348A2 Apparatus and method for cultivating rice and other crops
10/1989
10/31/1989US4877090 Reciprocating implement
10/25/1989CN2046306U Dual-purpose rake of walking tractors for waterland and dryland
10/05/1989WO1989008976A2 Apparatus for cultivating rice and other crops
10/05/1989DE3810163A1 Circular self-cleaning harrow
10/04/1989CN2045175U Plough-following rake for walking tractor
08/1989
08/15/1989US4856598 Machine for working soil
07/1989
07/18/1989US4848482 Machine for working soil
05/1989
05/24/1989EP0316728A1 Reciprocating harrow with elastic mounting of the tines
05/09/1989CA1253729A1 Flexible harrow with tooth-adjusting links
05/03/1989CN2036737U Boat-shaped paddy field harrow
03/1989
03/01/1989CN2033177U Front-seat mechanical harrow of a set of harrow
10/1988
10/19/1988EP0287489A1 Soil-working machine with oscillating soil-working tools
09/1988
09/13/1988US4770252 Harrow
07/1988
07/14/1988DE3700075A1 Leading device for a soil compaction device
06/1988
06/07/1988CA1237596A1 Vibrating harrow
05/1988
05/25/1988EP0268540A1 Soil-working machine
05/04/1988EP0266293A1 Soil-working machine
05/04/1988EP0266292A1 Soil-working machine
04/1988
04/12/1988CA1235014A1 Combined harrow and harrow bar
03/1988
03/31/1988DE3623204A1 Vorrichtung zur bodenbearbeitung Apparatus for tillage
03/09/1988EP0258644A1 Reciprocating harrow
03/03/1988DE3629847A1 Vibrating harrow
01/1988
01/28/1988WO1988000431A1 Device for tilling the soil
09/1987
09/03/1987DE3606527A1 Vibrating harrow
08/1987
08/11/1987US4685524 Reciprocating harrow with parker
07/1987
07/14/1987CA1224077A1 Trash farming means and method
05/1987
05/12/1987CA1221574A1 Chain harrows
03/1987
03/04/1987EP0212236A2 Oscillating harrow
12/1986
12/03/1986EP0203474A2 Oscillating harrow
11/1986
11/25/1986US4624322 Harrow with link having spike support attitude control
06/1986
06/03/1986CA1205317A1 Oscillating harrow
05/1986
05/28/1986EP0181964A1 Soil tilling implement
04/1986
04/15/1986US4582142 Chain harrows
02/1986
02/25/1986US4572300 Vibrating harrow
12/1985
12/17/1985US4558746 Lawn working implement
12/17/1985US4558745 Machine for working soil having drivingly oscillated soil-working tool
11/1985
11/13/1985EP0161239A2 Pasture harrow
05/1985
05/29/1985EP0142750A2 Reciprocating harrow
05/29/1985EP0142721A2 Harrow
12/1984
12/18/1984CA1179542A1 Fastening device for tines
11/1984
11/28/1984EP0126224A1 Clearing machine for banks
10/1983
10/12/1983EP0090879A1 Hydraulic transmission system for an agricultural implement
07/1983
07/19/1983CA1150137A1 Hydraulic control system for controlling level of cultivators, chisel plows and like machines
06/1983
06/28/1983US4390070 Soil working machine
09/1982
09/14/1982CA1131493A1 Ground working implement
08/1982
08/24/1982CA1130133A1 Portable oscillating-ring harrow
08/03/1982CA1128807A1 Soil working apparatus
05/1982
05/18/1982US4330042 Thatch loosening rake
04/1982
04/20/1982US4325435 Drive transmissions for use in agricultural implements
04/15/1982WO1982001114A1 Earth moving device,particularly for arrangements in public gardens or parks
02/1982
02/09/1982US4314609 Apparatus for the preparation of the soil
01/1982
01/06/1982EP0042845A1 Process and device for working a soil
01/05/1982US4308920 Ground working implement wherein forward frame portion raised before frame support engages ground
10/1981
10/06/1981US4293042 Portable oscillating-ring harrow
08/1981
08/18/1981US4284273 Apparatus for raking and levelling sand in a pit
07/1981
07/09/1981WO1981001785A1 Process and device for working a soil
04/1981
04/07/1981CA1098757A1 Trailing arm mechanism
02/1981
02/24/1981US4252198 Ground levelling attachment for tractors
1 2 3 4