Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4601491 | Pipe connector | James L. Bell, Mark T. Thatcher, Norman Brammer, Thomas F. Sweeney | 1986-07-22 |
| 4561683 | Pipe connector with interengageable tubular pin and tubular box members | Norman Lumsden | 1985-12-31 |
| 4525001 | Pipe connector with interengagable tubular pin and tubular box members | Norman Lumsden | 1985-06-25 |