Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4951919 | Seal for gate valve liners | Norman H. Carlsen, Jr. | 1990-08-28 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4951919 | Seal for gate valve liners | Norman H. Carlsen, Jr. | 1990-08-28 |