Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5176413 | Anchoring means for pipes with rhomboid-shaped grip ring | — | 1993-01-05 |
| 5056269 | Apparatus for working in pipes | — | 1991-10-15 |
| 4687026 | Equipment for closing conduits | — | 1987-08-18 |
| 4647072 | Repair sleeve for piping | — | 1987-03-03 |
| 4585033 | Equipment for closing conduits | — | 1986-04-29 |