Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4873132 | Surface protector with expansible pocket | Robert A. Isaksen | 1989-10-10 |
| 4859512 | Transfer adhesive sandwich for applying adhesive to substrates | Robert A. Isaksen, Paul A. Krieger | 1989-08-22 |