Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4680896 | Tool unloading mechanism for automatic tool grinding machine | Charles T. Breitenstein | 1987-07-21 |
| 4608643 | Automatic tool grinding machine with computerized control | Charles T. Breitenstein | 1986-08-26 |