Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4878985 | Apparatus for preparing belts | Karl V. Thomsen, John Darcy, Augustus W. Griswold, Jacob Pond | 1989-11-07 |
| 4838964 | Process for preparing belts | Karl V. Thomsen, John Darcy, Augustus W. Griswold, Jacob Pond | 1989-06-13 |