|
US3543861A
|
|
Apparatus for tilling and breaking soils
|
|
US3514830A
|
|
Method for manufacturing a coating layer to protect the working surfaces of machinery
|
|
GB1202720A
|
|
Improvements in or relating to shaped working parts
|
|
GB1017588A
|
|
Improvements in or relating to ploughing devices
|
|
GB937009A
|
|
Improvements in and relating to ploughs
|
|
US2841068A
|
|
Mouldboard or breast of plow
|
|
GB760203A
|
|
Breast of plough
|
|
US2797630A
|
|
Breast of plow
|
|
GB763005A
|
|
A new or improved plough frame and ploughs embodying such frames
|
|
GB721977A
|
|
Breast of plough
|
|
US2785617A
|
|
Mouldboard or breast of plow
|
|
US1910719A
|
|
Disintegrator for soil
|
