Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4824089 | Retractable buttocks support for operations in the prone sitting position | Charles D. Ray | 1989-04-25 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4824089 | Retractable buttocks support for operations in the prone sitting position | Charles D. Ray | 1989-04-25 |