Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5699326 | Time indicator | David J. Haas | 1997-12-16 |
| D386793 | Card badge | David J. Haas | 1997-11-25 |
| 5633835 | Long term rapid color changing time indicator | David J. Haas | 1997-05-27 |
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5699326 | Time indicator | David J. Haas | 1997-12-16 |
| D386793 | Card badge | David J. Haas | 1997-11-25 |
| 5633835 | Long term rapid color changing time indicator | David J. Haas | 1997-05-27 |