Title:
Rod weeder
United States Patent 3288480
US Patent References:
Rod weeder
- - 1872121
Rod weeder
- - 1941539
Message delivery device
- - 2270021
Extension assembly for tractormounted implements
- - 2687073
Running gear with foldable and vertically adjustable wheels
- - 2696772
Rod weeder
- - 1872121
Rod weeder
- - 1941539
Message delivery device
- - 2270021
Extension assembly for tractormounted implements
- - 2687073
Running gear with foldable and vertically adjustable wheels
- - 2696772
Inventors:
Calkins, Dwight L.
Calkins, Oscar C.
Carrick, Lawrence K.
Calkins, Oscar C.
Carrick, Lawrence K.
Publication Date:
11/29/1966
View Patent Images:
Export Citation:
Assignee:
CALKINS MFG COMPANY
Primary Class:
Other Classes:
172/456, 172/625, 172/44, 172/413
International Classes:
A01B39/19; A01B73/00; A01B39/00
US Patent References:
| 3108642 | Control system |
Foreign References:
| CA671719A | ||||
| GB691526A |