Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6449793 | Tessellated cylindrical brush | Joseph F. D'Costa, Warren L. Larson | 2002-09-17 |
| 6421870 | Stacked tools for overthrow sweeping | Joseph F. D'Costa, Karl Hansen | 2002-07-23 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6449793 | Tessellated cylindrical brush | Joseph F. D'Costa, Warren L. Larson | 2002-09-17 |
| 6421870 | Stacked tools for overthrow sweeping | Joseph F. D'Costa, Karl Hansen | 2002-07-23 |