Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4309140 | Self-locking threaded fastener and unlocking tool combination | Robert G. Steffen, LeVone A. Blough | 1982-01-05 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4309140 | Self-locking threaded fastener and unlocking tool combination | Robert G. Steffen, LeVone A. Blough | 1982-01-05 |