Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4190360 | Vacuum contact reproduction apparatus | Charles R. Barfield, Jr. | 1980-02-26 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4190360 | Vacuum contact reproduction apparatus | Charles R. Barfield, Jr. | 1980-02-26 |