Issued Patents All Time
Showing 1–2 of 2 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 |
| 4722392 | Multiple position service seal unit with positive position indicating means | Lewis D. Proctor, Colby M. Ross, Frank Giusti, Jr. | 1988-02-02 |