Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4376746 | Formation of hollow tapered brush bristles | John H. Ward, Robert Austin | 1983-03-15 |
| 4307478 | Hollow tapered brush bristles | John H. Ward, Robert Austin | 1981-12-29 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4376746 | Formation of hollow tapered brush bristles | John H. Ward, Robert Austin | 1983-03-15 |
| 4307478 | Hollow tapered brush bristles | John H. Ward, Robert Austin | 1981-12-29 |