Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4702617 | Chill temperature meter with selectable response | Austin A. Crabtree, James Crabtree | 1987-10-27 |
| 4504157 | Chill temperature meter | Austin A. Crabtree, James Crabtree | 1985-03-12 |