| Patents for A01B 13 - Ploughs or like machines for special purposes (1,205) | |
|---|---|
| 12/1976 | |
| 12/21/1976 | US3998275 Earthworking implement and row guide apparatus |
| 12/07/1976 | US3995570 Cultivators |
| 07/1976 | |
| 07/06/1976 | US3967564 Soil shattering and aerating device |
| 06/1976 | |
| 06/01/1976 | US3960220 Subsoil plow |
| 01/1976 | |
| 01/13/1976 | US3931858 Cultivating machine |