Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4314625 | Artist's portfolio | David Sarna | 1982-02-09 |
| 4213520 | Artists' portfolio | David Sarna | 1980-07-22 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4314625 | Artist's portfolio | David Sarna | 1982-02-09 |
| 4213520 | Artists' portfolio | David Sarna | 1980-07-22 |