Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5303448 | Hopper and filter chamber for direct forward throw sweeper | Robert D. Hennessey | 1994-04-19 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5303448 | Hopper and filter chamber for direct forward throw sweeper | Robert D. Hennessey | 1994-04-19 |