Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4309839 | Sheet material device with loosely rotatable member | David L. White | 1982-01-12 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4309839 | Sheet material device with loosely rotatable member | David L. White | 1982-01-12 |