Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4986175 | Ink stamp apparatus and kit | John R. Boehringer | 1991-01-22 |
| D290469 | Ink stamp | John R. Boehringer | 1987-06-23 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4986175 | Ink stamp apparatus and kit | John R. Boehringer | 1991-01-22 |
| D290469 | Ink stamp | John R. Boehringer | 1987-06-23 |