Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4838206 | Combination collar and muzzle humane training aid | Robert Anderson, Jeffrey A. Levine | 1989-06-13 |
| 4828210 | One-hand adjustable lock for tether | Robert Anderson, Bertyl W. Carlson | 1989-05-09 |