Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6249113 | Hand held sensor and display | Norman L. Krantz | 2001-06-19 |
| 5452522 | Calibrated bevel square with integrated electronic level and plumb | Gary R. Schultheis, John R. Stauss, Douglas R. Grundstrom | 1995-09-26 |
| 5313713 | Electronic level with display scale and audible tone scale | Charles E. Heger | 1994-05-24 |