Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5672041 | Collapsible, powered platform for lifting wheelchair | Lynn O. Ringdahl, James B. Welte, Gary G. Gruber, Timothy W. Jenum | 1997-09-30 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5672041 | Collapsible, powered platform for lifting wheelchair | Lynn O. Ringdahl, James B. Welte, Gary G. Gruber, Timothy W. Jenum | 1997-09-30 |