Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5201204 | Press counterbalance system | William H. Hinterman | 1993-04-13 |
| 5009091 | Press counterbalance system | William H. Hinterman | 1991-04-23 |
| 4969344 | Press counterbalance system | William H. Hinterman | 1990-11-13 |