Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5829508 | Door closer and method | Marc M. DeBower, Walter B. Herbst, Gordon D. Hansen | 1998-11-03 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5829508 | Door closer and method | Marc M. DeBower, Walter B. Herbst, Gordon D. Hansen | 1998-11-03 |