Issued Patents 2021
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D926834 | Creasing rule for paperboard blanks | Edward A. Zumbiel | 2021-08-03 |
| D926835 | Creasing rule for paperboard blanks | Edward A. Zumbiel | 2021-08-03 |
| D926836 | Creasing rule for paperboard blanks | Edward A. Zumbiel | 2021-08-03 |
| D926837 | Creasing rule for paperboard blanks | Edward A. Zumbiel | 2021-08-03 |
| D926838 | Creasing rule for paperboard blanks | Edward A. Zumbiel | 2021-08-03 |
| D926839 | Creasing rule for paperboard blanks | Edward A. Zumbiel | 2021-08-03 |