Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4871122 | Roll dispenser unit | — | 1989-10-03 |
| 4838905 | Filter element and method of making a filter element | Colin Billiet, Stephen Nicholas Smith | 1989-06-13 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4871122 | Roll dispenser unit | — | 1989-10-03 |
| 4838905 | Filter element and method of making a filter element | Colin Billiet, Stephen Nicholas Smith | 1989-06-13 |