Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D310987 | Cover for the bed of a pickup truck | Richard B. Gibbs | 1990-10-02 |
| 4420166 | Stair climber for hand trucks | Carl N. Mortenson, Paul R. Ripple, Roger S. Eckhardt | 1983-12-13 |