Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4876864 | Combination lock | — | 1989-10-31 |
| 4877227 | Apparatus for machining a work piece and a jig assembly for holding the work piece | John Roy Whitney, Harold K. McGeehan | 1989-10-31 |