Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5637349 | Method of reducing dusting tendencies of conveyed particulate material | David Cummins | 1997-06-10 |
| 5622561 | Particulate material treatment system and conveyor belt mixing system | David Cummins | 1997-04-22 |