Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4360860 | Self-contained hand held portable lantern-flashlight consisting of a manually operated generator and rechargeable batteries | Hugh Griffith Johnson | 1982-11-23 |
| 4317107 | Audible vacuum detector | — | 1982-02-23 |