Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D317133 | Combined ruler and holder | Ernst Kissow | 1991-05-28 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D317133 | Combined ruler and holder | Ernst Kissow | 1991-05-28 |