Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5289522 | Dental X-ray aiming device | Maurice S. Kanbar, Robert J. Cohn | 1994-02-22 |
| 5279231 | Plastic frame system having a triangular support post | Robert J. Cohn, John H. Welsch, Willard J. Sickles, David T. Balazek, Rodney E. Brancher | 1994-01-18 |