Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7141960 | Method and device system for testing electrical components | — | 2006-11-28 |
| 6531878 | Direct current voltage detection stick | Carl Gunnar Klingberg | 2003-03-11 |
| 6424139 | Voltage detection stick | Gunnar Carl Klingberg | 2002-07-23 |
| D445350 | Voltage detection stick | Gunnar Carl Klingberg | 2001-07-24 |