Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5664947 | Method, apparatus, and kit for marking a surface with colored bubbles | Charles W. Dietterich, Gordon R. Perry, Jude C. Tan | 1997-09-09 |
| 5657738 | Projectile toy | — | 1997-08-19 |