Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4930925 | Loose-leaf notebook construction | Stephen Selwyn | 1990-06-05 |
| 4907904 | Notebook with selectively changeable, removeable and replaceable information carriers | — | 1990-03-13 |