Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5385520 | Ice skating treadmill | John P. Frappier | 1995-01-31 |
| 4685481 | Washer for plant roots and other articles | Steven J. Carlson, William W. Donald | 1987-08-11 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5385520 | Ice skating treadmill | John P. Frappier | 1995-01-31 |
| 4685481 | Washer for plant roots and other articles | Steven J. Carlson, William W. Donald | 1987-08-11 |