Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D304251 | Dual vacuum cleaner design | — | 1989-10-24 |
| 4820231 | Mannequin device | Nancy L. Mikitka, Duane R. Picht | 1989-04-11 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D304251 | Dual vacuum cleaner design | — | 1989-10-24 |
| 4820231 | Mannequin device | Nancy L. Mikitka, Duane R. Picht | 1989-04-11 |