Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5376147 | Process for dyeing leather with dye mixtures | Campbell Page, Alois Puntener | 1994-12-27 |
| 5354341 | Process for dyeing leather with dye mixtures | Thomas P. Campbell, Alois Puntener | 1994-10-11 |