Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4942614 | Calibration of ultrasonic transducers | — | 1990-07-17 |
| 4418913 | Bingo cards rack and card clip | Charles B. Carpenter | 1983-12-06 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4942614 | Calibration of ultrasonic transducers | — | 1990-07-17 |
| 4418913 | Bingo cards rack and card clip | Charles B. Carpenter | 1983-12-06 |