Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4834430 | Pipe socket insert | Efrain D. Vassallo | 1989-05-30 |
| 4826028 | Gasket seating ring | Efrain D. Vassallo | 1989-05-02 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4834430 | Pipe socket insert | Efrain D. Vassallo | 1989-05-30 |
| 4826028 | Gasket seating ring | Efrain D. Vassallo | 1989-05-02 |