Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4797864 | Race stopwatch with plural displays and operating modes | Richard H. Harrington | 1989-01-10 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4797864 | Race stopwatch with plural displays and operating modes | Richard H. Harrington | 1989-01-10 |