Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4322122 | Cigarette lighter plug assembly | Allan W. Langan | 1982-03-30 |
| 4317468 | Pressure relief valve | Allen W. Langan | 1982-03-02 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4322122 | Cigarette lighter plug assembly | Allan W. Langan | 1982-03-30 |
| 4317468 | Pressure relief valve | Allen W. Langan | 1982-03-02 |