Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6750755 | Retractable pin array identification apparatus and method | Debora Margaret Hejza Litwiller | 2004-06-15 |
| 6696970 | Retractable pin array identification apparatus and method | Debora Margaret Hejza Litwiller | 2004-02-24 |