Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4948028 | Variable size envelope with single closure flap | — | 1990-08-14 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4948028 | Variable size envelope with single closure flap | — | 1990-08-14 |