Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5657002 | Resettable latching indicator | — | 1997-08-12 |
| 5581520 | Watch driven elapsed time indicator apparatus and its method of manufacture and use | — | 1996-12-03 |
| 4277841 | Elapsed time indicator | — | 1981-07-07 |
| 4209185 | Sensing apparatus with electrical actuation system | Donald R. St. Clair | 1980-06-24 |