Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5313267 | Method and instrument for selecting personal compatible colors | Darby Simpson Macfarlane, Fred W. Billmeyer, Jr. | 1994-05-17 |
| 5311293 | Method and instrument for selecting personal compatible colors | Darby Simpson Macfarlane, Fred W. Billmeyer, Jr. | 1994-05-10 |