Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4320992 | Grout distribution system | Lloyd C. Knox, Bob L. Sullaway | 1982-03-23 |
| 4311414 | Pile wiper seal | — | 1982-01-19 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4320992 | Grout distribution system | Lloyd C. Knox, Bob L. Sullaway | 1982-03-23 |
| 4311414 | Pile wiper seal | — | 1982-01-19 |