Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4803859 | Tumbler wheel structure for radiological detector resistant combination lock | Harry C. Miller | 1989-02-14 |
| 4796446 | Radiological detection resistant combination lock | Harry C. Miller | 1989-01-10 |
| 4776190 | Radiological detection resistant key changeable combination lock | Harry C. Miller, John Bishop, Gregory C. Lainhart | 1988-10-11 |