Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4850754 | Automatic drilling machine | John S. Thornton, Eugene A. Munchel | 1989-07-25 |
| 4674925 | Gang drill and method for clearing patterns of holes in tubular members | John S. Thornton, Eugene A. Munchel, Richard E. Plowman | 1987-06-23 |
| 4491295 | Gang cutting tool assembly and method of forming same | John S. Thornton | 1985-01-01 |
| 4441245 | Gang cutting tool assembly | John S. Thornton | 1984-04-10 |
| 4419803 | Method of forming a tool assembly | John S. Thornton | 1983-12-13 |
| 4397074 | Method of forming a gang cutting tool assembly and tool formed thereby | John S. Thornton | 1983-08-09 |