Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4840229 | Multiple position service seal unit with positive position indicating means | Lewis D. Proctor, Colby M. Ross, Frank Giusti, Jr. | 1989-06-20 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4840229 | Multiple position service seal unit with positive position indicating means | Lewis D. Proctor, Colby M. Ross, Frank Giusti, Jr. | 1989-06-20 |