Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5022200 | Interlocking sections for portable floors and the like | Warren Skistad | 1991-06-11 |
| 4988131 | Interlocking sections for portable floors and the like | Warren Skistad | 1991-01-29 |
| 4480556 | Adjustable folding ironing board | Ronald R. Carlson | 1984-11-06 |
| 4449263 | Powered folding support structure | Richard C. Bue | 1984-05-22 |
| 4446796 | Table and improved hinge mechanism | Ronald R. Carlson | 1984-05-08 |
| 4301627 | Guard rails for portable stages | — | 1981-11-24 |
| 4296573 | Audience control barrier | Ronald R. Carlson | 1981-10-27 |