Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6637064 | Drain cleaning apparatus with remotely adjustable feed control | Arthur Silverman | 2003-10-28 |
| 6546582 | Drain cleaning machine and adjustable collet chuck mechanism therefor | — | 2003-04-15 |