Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5007525 | Belt and chain flight conveyor | — | 1991-04-16 |
| 4749326 | Continuous loading apparatus | John H. Hradil, Frank Bottomley, Bradley D. Toole | 1988-06-07 |
| 4648776 | Continuous loading apparatus and method | John H. Hradil, Frank Bottomley | 1987-03-10 |
| 4184581 | Loading apparatus for mines | Malcolm D. Rowswell | 1980-01-22 |