Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D339975 | Pipe restrainer collar member | Edwin A. Bird, Michael E. Corwon | 1993-10-05 |
| 5209524 | Pipe restraining collar member having protrusions of different sizes | Michael E. Corwon, Edwin A. Bird | 1993-05-11 |
| 5190324 | Pipe restraining member | Edwin A. Bird | 1993-03-02 |