Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5691520 | Self adjusting lid switch | Kenyon A. Hapke, Spencer C. Schantz | 1997-11-25 |
| 5682772 | Lid switch with contact failure detection | Kenyon A. Hapke, Spencer C. Schantz | 1997-11-04 |