Harrows with rotary non-driven tools (tilling implements with rotary driven tools A 01 B 33/00)
21
/
02
•
with tooth-like tools
21
/
04
•
•
on horizontally-arranged axles
21
/
06
•
•
on vertically-arranged axles
21
/
08
•
with disc-like tools
23
/
00
Elements, tools, or details of harrows
23
/
02
•
Teeth; Fixing the teeth
23
/
04
•
Frames (means or arrangements to facilitate transportation A 01 B 73/00); Drawing-arrangements [4]
23
/
06
•
Discs (A 01 B 15/16 takes precedence; bearings therefor A 01 B 71/04); Scrapers for cleaning discs; Sharpening attachments (sharpening in general B 24) [2]
25
/
00
Harrows with special additional arrangements, e.g. means for distributing fertilisers; Harrows for special purposes (
A 01 B 39/00 takes precedence)
Other machines for working soil
27
/
00
Clod-crushers
29
/
00
Rollers
29
/
02
•
with smooth surface
29
/
04
•
with non-smooth surface formed of rotatably- mounted rings or discs or with projections or ribs on the roller body; Land packers
29
/
06
•
with special additional arrangements
31
/
00
Drags
33
/
00
Tilling implements with rotary driven tools
33
/
02
•
with tools on horizontal shaft transverse to direction of travel
33
/
04
•
with tools on horizontal shaft parallel to direction of travel
33
/
06
•
with tools on vertical or steeply-inclined shaft
33
/
08
•
Tools; Details, e.g. adaptations of transmissions or gearings
33
/
10
•
•
Structural or functional features of the tools
33
/
12
•
•
Arrangement of the tools; Screening of the tools
33
/
14
•
•
Attaching the tools to the rotating shaft, e.g. resiliently-attached tools
33
/
16
•
with special additional arrangements (A 01 B 49/00 takes precedence; for sowing or fertilising A 01 B 49/06) [2]
