Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5485692 | Multiple year calendar | — | 1996-01-23 |
| D267552 | Multiple scale rule | Douglas D. Seely, Jr. | 1983-01-11 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5485692 | Multiple year calendar | — | 1996-01-23 |
| D267552 | Multiple scale rule | Douglas D. Seely, Jr. | 1983-01-11 |