Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D305270 | Ski boot scraper | Pamela J. Swanson | 1989-12-26 |
| 4825430 | Erasable optical data storage medium having an embedded servo track and a subsurface recording interface | Joseph M. Halter, John S. Hartman, Michael A. Lind, W. Eugene Skiens, Jonathan R. Biles | 1989-04-25 |