Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4278490 | Sleeve for changing diameter of collapsible mandrel | Walter Stoll, Leo A. Oswald | 1981-07-14 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4278490 | Sleeve for changing diameter of collapsible mandrel | Walter Stoll, Leo A. Oswald | 1981-07-14 |