Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4871038 | Combinational weighing systems | Robert Tansley | 1989-10-03 |
| 4807711 | Weighing hoppers | Kennedy M. O'Brien, Keith E. Dunton, Peter E. Newley, Michael Headlam Purser, Robert Tansley | 1989-02-28 |