Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4657449 | Internal sewage line stub cutting tool having automatic bit adjustment | Thomas V. Vartanian | 1987-04-14 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4657449 | Internal sewage line stub cutting tool having automatic bit adjustment | Thomas V. Vartanian | 1987-04-14 |