Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4430024 | Hydraulically operated mandrels | Charles L. Guild, Nicholas H. Werthessen | 1984-02-07 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4430024 | Hydraulically operated mandrels | Charles L. Guild, Nicholas H. Werthessen | 1984-02-07 |