Issued Patents 1997
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D387799 | Self-inking stamp | Sean Daw, Michael D. Bailey, John R. Laverack, Frederick W. Dour, Walter W. Stefanski | 1997-12-16 |
| D387800 | Ink pad holder | Sean Daw, Michael D. Bailey, John R. Laverack, Frederick W. Dour, Walter W. Stefanski | 1997-12-16 |
| 5649485 | Self-inking stamp | Frederick W. Dour, Walter W. Stefanski | 1997-07-22 |
| 5611984 | Method for stabilizing microporous marking structures | Arthur A. Tracton | 1997-03-18 |